22000111979129 has 2 divisors, whose sum is σ = 22000111979130. Its totient is φ = 22000111979128.

The previous prime is 22000111979119. The next prime is 22000111979179. The reversal of 22000111979129 is 92197911100022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19763786139904 + 2236325839225 = 4445648^2 + 1495435^2 .

It is a cyclic number.

It is not a de Polignac number, because 22000111979129 - 2¹² = 22000111975033 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22000111979129.

It is not a weakly prime, because it can be changed into another prime (22000111979119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11000055989564 + 11000055989565.

It is an arithmetic number, because the mean of its divisors is an integer number (11000055989565).

Almost surely, 2^{22000111979129} is an apocalyptic number.

It is an amenable number.

22000111979129 is a deficient number, since it is larger than the sum of its proper divisors (1).

22000111979129 is an equidigital number, since it uses as much as digits as its factorization.

22000111979129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 44.

The spelling of 22000111979129 in words is "twenty-two trillion, one hundred eleven million, nine hundred seventy-nine thousand, one hundred twenty-nine".