122472965981 has 2 divisors, whose sum is σ = 122472965982. Its totient is φ = 122472965980.

The previous prime is 122472965969. The next prime is 122472965983. The reversal of 122472965981 is 189569274221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122056601956 + 416364025 = 349366^2 + 20405^2 .

It is a cyclic number.

It is not a de Polignac number, because 122472965981 - 2²⁶ = 122405857117 is a prime.

It is a super-2 number, since 2×122472965981² (a number of 23 digits) contains 22 as substring.

Together with 122472965983, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122472965983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61236482990 + 61236482991.

It is an arithmetic number, because the mean of its divisors is an integer number (61236482991).

Almost surely, 2^122472965981 is an apocalyptic number.

It is an amenable number.

122472965981 is a deficient number, since it is larger than the sum of its proper divisors (1).

122472965981 is an equidigital number, since it uses as much as digits as its factorization.

122472965981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4354560, while the sum is 56.

The spelling of 122472965981 in words is "one hundred twenty-two billion, four hundred seventy-two million, nine hundred sixty-five thousand, nine hundred eighty-one".