22112212121202 has 32 divisors (see below), whose sum is σ = 53202314880000. Its totient is φ = 5985260423568.

The previous prime is 22112212121189. The next prime is 22112212121239. The reversal of 22112212121202 is 20212121221122.

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

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, 13854768702 + ... + 13854770297.

It is an arithmetic number, because the mean of its divisors is an integer number (1662572340000).

Almost surely, 2^{22112212121202} is an apocalyptic number.

22112212121202 is an abundant number, since it is smaller than the sum of its proper divisors (31090102758798).

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

22112212121202 is a wasteful number, since it uses less digits than its factorization.

22112212121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27709539030.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 22112212121202 its reverse (20212121221122), we get a palindrome (42324333342324).

The spelling of 22112212121202 in words is "twenty-two trillion, one hundred twelve billion, two hundred twelve million, one hundred twenty-one thousand, two hundred two".