122402052244721 has 2 divisors, whose sum is σ = 122402052244722. Its totient is φ = 122402052244720.

The previous prime is 122402052244639. The next prime is 122402052244763. The reversal of 122402052244721 is 127442250204221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110314164333025 + 12087887911696 = 10503055^2 + 3476764^2 .

It is a cyclic number.

It is not a de Polignac number, because 122402052244721 - 2²² = 122402048050417 is a prime.

It is not a weakly prime, because it can be changed into another prime (122402052244781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61201026122360 + 61201026122361.

It is an arithmetic number, because the mean of its divisors is an integer number (61201026122361).

Almost surely, 2^{122402052244721} is an apocalyptic number.

It is an amenable number.

122402052244721 is a deficient number, since it is larger than the sum of its proper divisors (1).

122402052244721 is an equidigital number, since it uses as much as digits as its factorization.

122402052244721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 143360, while the sum is 38.

The spelling of 122402052244721 in words is "one hundred twenty-two trillion, four hundred two billion, fifty-two million, two hundred forty-four thousand, seven hundred twenty-one".