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1201200220212 = 223169909589139
BaseRepresentation
bin10001011110101101000…
…111001100100000110100
311020211111201010121120220
4101132231013030200310
5124140024224021322
62315453533254340
7152532601256226
oct21365507144064
94224451117526
101201200220212
11423476233323
121749736343b0
1389371158495
14421d1ab4416
15213a526b55c
hex117ad1cc834

1201200220212 has 24 divisors (see below), whose sum is σ = 2802821767200. Its totient is φ = 400397037216.

The previous prime is 1201200220193. The next prime is 1201200220273. The reversal of 1201200220212 is 2120220021021.

It is a junction number, because it is equal to n+sod(n) for n = 1201200220191 and 1201200220200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1744339 + ... + 2333477.

It is an arithmetic number, because the mean of its divisors is an integer number (116784240300).

Almost surely, 21201200220212 is an apocalyptic number.

1201200220212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1201200220212 is an abundant number, since it is smaller than the sum of its proper divisors (1601621546988).

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

1201200220212 is a wasteful number, since it uses less digits than its factorization.

1201200220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759055 (or 759053 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1201200220212 its reverse (2120220021021), we get a palindrome (3321420241233).

The spelling of 1201200220212 in words is "one trillion, two hundred one billion, two hundred million, two hundred twenty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 169909 339818 509727 589139 679636 1019454 1178278 1767417 2038908 2356556 3534834 7069668 100100018351 200200036702 300300055053 400400073404 600600110106 1201200220212