12220010021000 has 64 divisors (see below), whose sum is σ = 28622887488000. Its totient is φ = 4883206737600.

The previous prime is 12220010020997. The next prime is 12220010021003. The reversal of 12220010021000 is 12001002221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12220010020997) and next prime (12220010021003).

It is not an unprimeable number, because it can be changed into a prime (12220010021003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4977080 + ... + 7015079.

It is an arithmetic number, because the mean of its divisors is an integer number (447232617000).

Almost surely, 2^{12220010021000} is an apocalyptic number.

12220010021000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220010021000 is an abundant number, since it is smaller than the sum of its proper divisors (16402877467000).

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

12220010021000 is a wasteful number, since it uses less digits than its factorization.

12220010021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11993199 (or 11993185 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12220010021000 its reverse (12001002221), we get a palindrome (12232011023221).

The spelling of 12220010021000 in words is "twelve trillion, two hundred twenty billion, ten million, twenty-one thousand".