122311221973 has 2 divisors, whose sum is σ = 122311221974. Its totient is φ = 122311221972.

The previous prime is 122311221961. The next prime is 122311222051. The reversal of 122311221973 is 379122113221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119057432209 + 3253789764 = 345047^2 + 57042^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122311221973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122311221913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61155610986 + 61155610987.

It is an arithmetic number, because the mean of its divisors is an integer number (61155610987).

Almost surely, 2^122311221973 is an apocalyptic number.

It is an amenable number.

122311221973 is a deficient number, since it is larger than the sum of its proper divisors (1).

122311221973 is an equidigital number, since it uses as much as digits as its factorization.

122311221973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 34.

The spelling of 122311221973 in words is "one hundred twenty-two billion, three hundred eleven million, two hundred twenty-one thousand, nine hundred seventy-three".