20212211122122 has 16 divisors (see below), whose sum is σ = 40473185127840. Its totient is φ = 6729276560112.

The previous prime is 20212211122111. The next prime is 20212211122219. The reversal of 20212211122122 is 22122111221202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2031781428 + ... + 2031791375.

It is an arithmetic number, because the mean of its divisors is an integer number (2529574070490).

Almost surely, 2^{20212211122122} is an apocalyptic number.

20212211122122 is an abundant number, since it is smaller than the sum of its proper divisors (20260974005718).

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

20212211122122 is a wasteful number, since it uses less digits than its factorization.

20212211122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4063573637.

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

Adding to 20212211122122 its reverse (22122111221202), we get a palindrome (42334322343324).

The spelling of 20212211122122 in words is "twenty trillion, two hundred twelve billion, two hundred eleven million, one hundred twenty-two thousand, one hundred twenty-two".