122438879501 has 2 divisors, whose sum is σ = 122438879502. Its totient is φ = 122438879500.

The previous prime is 122438879473. The next prime is 122438879503. The reversal of 122438879501 is 105978834221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122356542025 + 82337476 = 349795^2 + 9074^2 .

It is a cyclic number.

It is not a de Polignac number, because 122438879501 - 2¹⁴ = 122438863117 is a prime.

Together with 122438879503, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122438879501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122438879503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61219439750 + 61219439751.

It is an arithmetic number, because the mean of its divisors is an integer number (61219439751).

Almost surely, 2^122438879501 is an apocalyptic number.

It is an amenable number.

122438879501 is a deficient number, since it is larger than the sum of its proper divisors (1).

122438879501 is an equidigital number, since it uses as much as digits as its factorization.

122438879501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 122438879501 in words is "one hundred twenty-two billion, four hundred thirty-eight million, eight hundred seventy-nine thousand, five hundred one".