22221321021102 has 32 divisors (see below), whose sum is σ = 50791767264000. Its totient is φ = 6348926818368.

The previous prime is 22221321021073. The next prime is 22221321021157. The reversal of 22221321021102 is 20112012312222.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 14280274 + ... + 15759722.

It is an arithmetic number, because the mean of its divisors is an integer number (1587242727000).

Almost surely, 2^{22221321021102} is an apocalyptic number.

22221321021102 is an abundant number, since it is smaller than the sum of its proper divisors (28570446242898).

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

22221321021102 is a wasteful number, since it uses less digits than its factorization.

22221321021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1837080.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 22221321021102 its reverse (20112012312222), we get a palindrome (42333333333324).

The spelling of 22221321021102 in words is "twenty-two trillion, two hundred twenty-one billion, three hundred twenty-one million, twenty-one thousand, one hundred two".