122155152277 has 2 divisors, whose sum is σ = 122155152278. Its totient is φ = 122155152276.

The previous prime is 122155152269. The next prime is 122155152307. The reversal of 122155152277 is 772251551221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118838083441 + 3317068836 = 344729^2 + 57594^2 .

It is a cyclic number.

It is not a de Polignac number, because 122155152277 - 2³ = 122155152269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122155152227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61077576138 + 61077576139.

It is an arithmetic number, because the mean of its divisors is an integer number (61077576139).

Almost surely, 2^122155152277 is an apocalyptic number.

It is an amenable number.

122155152277 is a deficient number, since it is larger than the sum of its proper divisors (1).

122155152277 is an equidigital number, since it uses as much as digits as its factorization.

122155152277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 98000, while the sum is 40.

The spelling of 122155152277 in words is "one hundred twenty-two billion, one hundred fifty-five million, one hundred fifty-two thousand, two hundred seventy-seven".