22122021221202 has 64 divisors (see below), whose sum is σ = 50745690362880. Its totient is φ = 6297945804864.

The previous prime is 22122021221189. The next prime is 22122021221203. The reversal of 22122021221202 is 20212212022122.

It is a super-2 number, since 2×22122021221202² (a number of 27 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (22122021221203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 422319049 + ... + 422371427.

It is an arithmetic number, because the mean of its divisors is an integer number (792901411920).

Almost surely, 2^{22122021221202} is an apocalyptic number.

22122021221202 is an abundant number, since it is smaller than the sum of its proper divisors (28623669141678).

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

22122021221202 is a wasteful number, since it uses less digits than its factorization.

22122021221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88207.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 22122021221202 its reverse (20212212022122), we get a palindrome (42334233243324).

The spelling of 22122021221202 in words is "twenty-two trillion, one hundred twenty-two billion, twenty-one million, two hundred twenty-one thousand, two hundred two".