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1222030044420 = 2235172371505301
BaseRepresentation
bin10001110010000110101…
…010101010110100000100
311022211021101010022122120
4101302012222222310010
5130010204142410140
62333220504525540
7154201020663543
oct21620652526404
94284241108576
101222030044420
11431295113579
12178a074808b0
138b310728c53
144320a28a15a
1521bc3ca11d0
hex11c86aaad04

1222030044420 has 96 divisors (see below), whose sum is σ = 3624494864256. Its totient is φ = 306575616000.

The previous prime is 1222030044419. The next prime is 1222030044463. The reversal of 1222030044420 is 244400302221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2165770 + ... + 2671070.

It is an arithmetic number, because the mean of its divisors is an integer number (37755154836).

Almost surely, 21222030044420 is an apocalyptic number.

1222030044420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222030044420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1812247432128).

1222030044420 is an abundant number, since it is smaller than the sum of its proper divisors (2402464819836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222030044420 is a wasteful number, since it uses less digits than its factorization.

1222030044420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507701 (or 507699 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 1222030044420 its reverse (244400302221), we get a palindrome (1466430346641).

The spelling of 1222030044420 in words is "one trillion, two hundred twenty-two billion, thirty million, forty-four thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 17 20 30 34 51 60 68 85 102 170 204 255 340 510 1020 2371 4742 7113 9484 11855 14226 23710 28452 35565 40307 47420 71130 80614 120921 142260 161228 201535 241842 403070 483684 505301 604605 806140 1010602 1209210 1515903 2021204 2418420 2526505 3031806 5053010 6063612 7579515 8590117 10106020 15159030 17180234 25770351 30318060 34360468 42950585 51540702 85901170 103081404 128851755 171802340 257703510 515407020 1198068671 2396137342 3594206013 4792274684 5990343355 7188412026 11980686710 14376824052 17971030065 20367167407 23961373420 35942060130 40734334814 61101502221 71884120260 81468669628 101835837035 122203004442 203671674070 244406008884 305507511105 407343348140 611015022210 1222030044420