122211210977 has 2 divisors, whose sum is σ = 122211210978. Its totient is φ = 122211210976.

The previous prime is 122211210941. The next prime is 122211211009. The reversal of 122211210977 is 779012112221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121282241536 + 928969441 = 348256^2 + 30479^2 .

It is a cyclic number.

It is not a de Polignac number, because 122211210977 - 2¹² = 122211206881 is a prime.

It is not a weakly prime, because it can be changed into another prime (122211210377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61105605488 + 61105605489.

It is an arithmetic number, because the mean of its divisors is an integer number (61105605489).

Almost surely, 2^122211210977 is an apocalyptic number.

It is an amenable number.

122211210977 is a deficient number, since it is larger than the sum of its proper divisors (1).

122211210977 is an equidigital number, since it uses as much as digits as its factorization.

122211210977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 35.

The spelling of 122211210977 in words is "one hundred twenty-two billion, two hundred eleven million, two hundred ten thousand, nine hundred seventy-seven".