122992641209 has 2 divisors, whose sum is σ = 122992641210. Its totient is φ = 122992641208.

The previous prime is 122992641139. The next prime is 122992641251. The reversal of 122992641209 is 902146299221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118845667600 + 4146973609 = 344740^2 + 64397^2 .

It is a cyclic number.

It is not a de Polignac number, because 122992641209 - 2²⁴ = 122975863993 is a prime.

It is not a weakly prime, because it can be changed into another prime (122992649209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61496320604 + 61496320605.

It is an arithmetic number, because the mean of its divisors is an integer number (61496320605).

Almost surely, 2^122992641209 is an apocalyptic number.

It is an amenable number.

122992641209 is a deficient number, since it is larger than the sum of its proper divisors (1).

122992641209 is an equidigital number, since it uses as much as digits as its factorization.

122992641209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 47.

The spelling of 122992641209 in words is "one hundred twenty-two billion, nine hundred ninety-two million, six hundred forty-one thousand, two hundred nine".