22221112020102 has 24 divisors (see below), whose sum is σ = 48387681123600. Its totient is φ = 7369816045680.

The previous prime is 22221112020101. The next prime is 22221112020137. The reversal of 22221112020102 is 20102021112222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221112020101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3101770849 + ... + 3101778012.

It is an arithmetic number, because the mean of its divisors is an integer number (2016153380150).

Almost surely, 2^{22221112020102} is an apocalyptic number.

22221112020102 is an abundant number, since it is smaller than the sum of its proper divisors (26166569103498).

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

22221112020102 is a wasteful number, since it uses less digits than its factorization.

22221112020102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6203549068 (or 6203549065 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22221112020102 its reverse (20102021112222), we get a palindrome (42323133132324).

The spelling of 22221112020102 in words is "twenty-two trillion, two hundred twenty-one billion, one hundred twelve million, twenty thousand, one hundred two".