221022110020012 has 24 divisors (see below), whose sum is σ = 442045682516480. Its totient is φ = 94723448049360.

The previous prime is 221022110020001. The next prime is 221022110020093. The reversal of 221022110020012 is 210020011220122.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4341414 + ... + 21468397.

Almost surely, 2^{221022110020012} is an apocalyptic number.

It is an amenable number.

221022110020012 is an abundant number, since it is smaller than the sum of its proper divisors (221023572496468).

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

221022110020012 is a wasteful number, since it uses less digits than its factorization.

221022110020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26115661 (or 26115659 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221022110020012 its reverse (210020011220122), we get a palindrome (431042121240134).

The spelling of 221022110020012 in words is "two hundred twenty-one trillion, twenty-two billion, one hundred ten million, twenty thousand, twelve".