122203431278501 has 2 divisors, whose sum is σ = 122203431278502. Its totient is φ = 122203431278500.

The previous prime is 122203431278447. The next prime is 122203431278549. The reversal of 122203431278501 is 105872134302221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118609851364225 + 3593579914276 = 10890815^2 + 1895674^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122203431278501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122203431278801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61101715639250 + 61101715639251.

It is an arithmetic number, because the mean of its divisors is an integer number (61101715639251).

Almost surely, 2^{122203431278501} is an apocalyptic number.

It is an amenable number.

122203431278501 is a deficient number, since it is larger than the sum of its proper divisors (1).

122203431278501 is an equidigital number, since it uses as much as digits as its factorization.

122203431278501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 122203431278501 in words is "one hundred twenty-two trillion, two hundred three billion, four hundred thirty-one million, two hundred seventy-eight thousand, five hundred one".