221111010121022 has 32 divisors (see below), whose sum is σ = 379334486361600. Its totient is φ = 94690107136800.

The previous prime is 221111010121003. The next prime is 221111010121037. The reversal of 221111010121022 is 220121010111122.

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, 486504548 + ... + 486958824.

It is an arithmetic number, because the mean of its divisors is an integer number (11854202698800).

Almost surely, 2^{221111010121022} is an apocalyptic number.

221111010121022 is a deficient number, since it is larger than the sum of its proper divisors (158223476240578).

221111010121022 is a wasteful number, since it uses less digits than its factorization.

221111010121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480536.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 221111010121022 its reverse (220121010111122), we get a palindrome (441232020232144).

The spelling of 221111010121022 in words is "two hundred twenty-one trillion, one hundred eleven billion, ten million, one hundred twenty-one thousand, twenty-two".