22100010201220 has 24 divisors (see below), whose sum is σ = 53040024483264. Its totient is φ = 7577146354656.

The previous prime is 22100010201209. The next prime is 22100010201233. The reversal of 22100010201220 is 2210201000122.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22100010201220.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78928607722 + ... + 78928608001.

It is an arithmetic number, because the mean of its divisors is an integer number (2210001020136).

Almost surely, 2^{22100010201220} is an apocalyptic number.

22100010201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22100010201220 is an abundant number, since it is smaller than the sum of its proper divisors (30940014282044).

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

22100010201220 is a wasteful number, since it uses less digits than its factorization.

22100010201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157857215739 (or 157857215737 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22100010201220 its reverse (2210201000122), we get a palindrome (24310211201342).

The spelling of 22100010201220 in words is "twenty-two trillion, one hundred billion, ten million, two hundred one thousand, two hundred twenty".