22122211112010 has 24 divisors (see below), whose sum is σ = 57517748891460. Its totient is φ = 5899256296512.

The previous prime is 22122211112009. The next prime is 22122211112047. The reversal of 22122211112010 is 1021111222122.

22122211112010 is a `hidden beast` number, since 221 + 22 + 211 + 11 + 201 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21945692652129 + 176518459881 = 4684623^2 + 420141^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122901172755 + ... + 122901172934.

Almost surely, 2^{22122211112010} is an apocalyptic number.

22122211112010 is an abundant number, since it is smaller than the sum of its proper divisors (35395537779450).

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

22122211112010 is a wasteful number, since it uses less digits than its factorization.

22122211112010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245802345702 (or 245802345699 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22122211112010 its reverse (1021111222122), we get a palindrome (23143322334132).

The spelling of 22122211112010 in words is "twenty-two trillion, one hundred twenty-two billion, two hundred eleven million, one hundred twelve thousand, ten".