22121102010204 has 48 divisors (see below), whose sum is σ = 57671401939200. Its totient is φ = 7332506805168.

The previous prime is 22121102010187. The next prime is 22121102010251. The reversal of 22121102010204 is 40201020112122.

22121102010204 is a `hidden beast` number, since 221 + 211 + 0 + 20 + 10 + 204 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 572117592 + ... + 572156255.

It is an arithmetic number, because the mean of its divisors is an integer number (1201487540400).

Almost surely, 2^{22121102010204} is an apocalyptic number.

It is an amenable number.

22121102010204 is an abundant number, since it is smaller than the sum of its proper divisors (35550299928996).

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

22121102010204 is a wasteful number, since it uses less digits than its factorization.

22121102010204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144274039 (or 1144274031 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22121102010204 its reverse (40201020112122), we get a palindrome (62322122122326).

The spelling of 22121102010204 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred two million, ten thousand, two hundred four".