22121120222129 has 2 divisors, whose sum is σ = 22121120222130. Its totient is φ = 22121120222128.

The previous prime is 22121120222099. The next prime is 22121120222143. The reversal of 22121120222129 is 92122202112122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14224008589729 + 7897111632400 = 3771473^2 + 2810180^2 .

It is a cyclic number.

It is not a de Polignac number, because 22121120222129 - 2⁸ = 22121120221873 is a prime.

It is not a weakly prime, because it can be changed into another prime (22121120225129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060560111064 + 11060560111065.

It is an arithmetic number, because the mean of its divisors is an integer number (11060560111065).

Almost surely, 2^{22121120222129} is an apocalyptic number.

It is an amenable number.

22121120222129 is a deficient number, since it is larger than the sum of its proper divisors (1).

22121120222129 is an equidigital number, since it uses as much as digits as its factorization.

22121120222129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 29.

The spelling of 22121120222129 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred twenty million, two hundred twenty-two thousand, one hundred twenty-nine".