22122112121011 has 12 divisors (see below), whose sum is σ = 26059630919520. Its totient is φ = 18721787469840.

The previous prime is 22122112121003. The next prime is 22122112121027. The reversal of 22122112121011 is 11012121122122.

It is a happy number.

It is not a de Polignac number, because 22122112121011 - 2³ = 22122112121003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22122112121011.

It is not an unprimeable number, because it can be changed into a prime (22122112121411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2857411800 + ... + 2857419541.

It is an arithmetic number, because the mean of its divisors is an integer number (2171635909960).

Almost surely, 2^{22122112121011} is an apocalyptic number.

22122112121011 is a deficient number, since it is larger than the sum of its proper divisors (3937518798509).

22122112121011 is an equidigital number, since it uses as much as digits as its factorization.

22122112121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5714831434 (or 5714831427 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 22122112121011 its reverse (11012121122122), we get a palindrome (33134233243133).

The spelling of 22122112121011 in words is "twenty-two trillion, one hundred twenty-two billion, one hundred twelve million, one hundred twenty-one thousand, eleven".