22222121210022 has 16 divisors (see below), whose sum is σ = 45528248333232. Its totient is φ = 7226706084480.

The previous prime is 22222121209999. The next prime is 22222121210027. The reversal of 22222121210022 is 22001212122222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222121210027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45166912783 + ... + 45166913274.

It is an arithmetic number, because the mean of its divisors is an integer number (2845515520827).

Almost surely, 2^{22222121210022} is an apocalyptic number.

22222121210022 is an abundant number, since it is smaller than the sum of its proper divisors (23306127123210).

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

22222121210022 is a wasteful number, since it uses less digits than its factorization.

22222121210022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90333826103.

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

Adding to 22222121210022 its reverse (22001212122222), we get a palindrome (44223333332244).

The spelling of 22222121210022 in words is "twenty-two trillion, two hundred twenty-two billion, one hundred twenty-one million, two hundred ten thousand, twenty-two".