122012021216977 has 2 divisors, whose sum is σ = 122012021216978. Its totient is φ = 122012021216976.

The previous prime is 122012021216959. The next prime is 122012021216983. The reversal of 122012021216977 is 779612120210221.

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., 119054089038481 + 2957932178496 = 10911191^2 + 1719864^2 .

It is a cyclic number.

It is not a de Polignac number, because 122012021216977 - 2¹⁹ = 122012020692689 is a prime.

It is a super-2 number, since 2×122012021216977² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122012021216927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61006010608488 + 61006010608489.

It is an arithmetic number, because the mean of its divisors is an integer number (61006010608489).

Almost surely, 2^{122012021216977} is an apocalyptic number.

It is an amenable number.

122012021216977 is a deficient number, since it is larger than the sum of its proper divisors (1).

122012021216977 is an equidigital number, since it uses as much as digits as its factorization.

122012021216977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 43.

The spelling of 122012021216977 in words is "one hundred twenty-two trillion, twelve billion, twenty-one million, two hundred sixteen thousand, nine hundred seventy-seven".