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2210122122220 = 2251733923191621
BaseRepresentation
bin100000001010010101100…
…010110100001111101100
321211021201012200121210001
4200022111202310033230
5242202312230402340
64411152135154044
7315450613034335
oct40122542641754
97737635617701
102210122122220
11782342358251
122b8405515924
1313054b95b87c
1478d8300328c
153c754dd429a
hex202958b43ec

2210122122220 has 48 divisors (see below), whose sum is σ = 4914442054368. Its totient is φ = 832017105920.

The previous prime is 2210122122193. The next prime is 2210122122223. The reversal of 2210122122220 is 222212210122.

It is not an unprimeable number, because it can be changed into a prime (2210122122223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11438010 + ... + 11629630.

It is an arithmetic number, because the mean of its divisors is an integer number (102384209466).

Almost surely, 22210122122220 is an apocalyptic number.

2210122122220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2210122122220 is an abundant number, since it is smaller than the sum of its proper divisors (2704319932148).

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

2210122122220 is a wasteful number, since it uses less digits than its factorization.

2210122122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225570 (or 225568 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2210122122220 its reverse (222212210122), we get a palindrome (2432334332342).

The spelling of 2210122122220 in words is "two trillion, two hundred ten billion, one hundred twenty-two million, one hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 33923 67846 135692 169615 191621 339230 383242 576691 678460 766484 958105 1153382 1916210 2306764 2883455 3257557 3832420 5766910 6515114 11533820 13030228 16287785 32575570 65151140 6500359183 13000718366 26001436732 32501795915 65003591830 110506106111 130007183660 221012212222 442024424444 552530530555 1105061061110 2210122122220