221010120000012 has 72 divisors (see below), whose sum is σ = 622011861359616. Its totient is φ = 59822288112096.

The previous prime is 221010119999969. The next prime is 221010120000013. The reversal of 221010120000012 is 210000021010122.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (221010120000013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3644114908 + ... + 3644175555.

Almost surely, 2^{221010120000012} is an apocalyptic number.

It is an amenable number.

221010120000012 is an abundant number, since it is smaller than the sum of its proper divisors (401001741359604).

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

221010120000012 is a wasteful number, since it uses less digits than its factorization.

221010120000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7288290515 (or 7288290494 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 221010120000012 its reverse (210000021010122), we get a palindrome (431010141010134).

The spelling of 221010120000012 in words is "two hundred twenty-one trillion, ten billion, one hundred twenty million, twelve", and thus it is an aban number.