22112031021210 has 192 divisors, whose sum is σ = 66204740478240. Its totient is φ = 5072066150400.

The previous prime is 22112031021167. The next prime is 22112031021217. The reversal of 22112031021210 is 1212013021122.

22112031021210 is a `hidden beast` number, since 2 + 2 + 1 + 120 + 310 + 21 + 210 = 666.

It can be written as a sum of positive squares in 16 ways, for example, as 1660951310841 + 20451079710369 = 1288779^2 + 4522287^2 .

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

It is not an unprimeable number, because it can be changed into a prime (22112031021217) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 3494655 + ... + 7512434.

Almost surely, 2^{22112031021210} is an apocalyptic number.

22112031021210 is an abundant number, since it is smaller than the sum of its proper divisors (44092709457030).

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

22112031021210 is a wasteful number, since it uses less digits than its factorization.

22112031021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11007233 (or 11007230 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 22112031021210 its reverse (1212013021122), we get a palindrome (23324044042332).

The spelling of 22112031021210 in words is "twenty-two trillion, one hundred twelve billion, thirty-one million, twenty-one thousand, two hundred ten".