22222212121010 has 64 divisors (see below), whose sum is σ = 44051396327424. Its totient is φ = 8003967652800.

The previous prime is 22222212121009. The next prime is 22222212121051. The reversal of 22222212121010 is 1012121222222.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72951479 + ... + 73255461.

It is an arithmetic number, because the mean of its divisors is an integer number (688303067616).

Almost surely, 2^{22222212121010} is an apocalyptic number.

22222212121010 is a deficient number, since it is larger than the sum of its proper divisors (21829184206414).

22222212121010 is a wasteful number, since it uses less digits than its factorization.

22222212121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310319.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22222212121010 its reverse (1012121222222), we get a palindrome (23234333343232).

It can be divided in two parts, 2222221212 and 1010, that added together give a palindrome (2222222222).

The spelling of 22222212121010 in words is "twenty-two trillion, two hundred twenty-two billion, two hundred twelve million, one hundred twenty-one thousand, ten".