22012021000120 has 64 divisors (see below), whose sum is σ = 49731664413600. Its totient is φ = 8768448430080.

The previous prime is 22012021000111. The next prime is 22012021000201. The reversal of 22012021000120 is 2100012021022.

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 22012021000120.

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, 43034836 + ... + 43543324.

Almost surely, 2^{22012021000120} is an apocalyptic number.

22012021000120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22012021000120 is an abundant number, since it is smaller than the sum of its proper divisors (27719643413480).

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

22012021000120 is a wasteful number, since it uses less digits than its factorization.

22012021000120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512968 (or 512964 counting only the distinct ones).

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

Adding to 22012021000120 its reverse (2100012021022), we get a palindrome (24112033021142).

The spelling of 22012021000120 in words is "twenty-two trillion, twelve billion, twenty-one million, one hundred twenty", and thus it is an aban number.