22001112210 has 96 divisors (see below), whose sum is σ = 67007518272. Its totient is φ = 4571656320.

The previous prime is 22001112169. The next prime is 22001112223. The reversal of 22001112210 is 1221110022.

It is a super-2 number, since 2×22001112210² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 664137 + ... + 696476.

It is an arithmetic number, because the mean of its divisors is an integer number (697994982).

Almost surely, 2^22001112210 is an apocalyptic number.

22001112210 is an abundant number, since it is smaller than the sum of its proper divisors (45006406062).

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

22001112210 is a wasteful number, since it uses less digits than its factorization.

22001112210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360648 (or 1360641 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22001112210 its reverse (1221110022), we get a palindrome (23222222232).

It can be divided in two parts, 220011 and 12210, that added together give a triangular number (232221 = T₆₈₁).

The spelling of 22001112210 in words is "twenty-two billion, one million, one hundred twelve thousand, two hundred ten".