122551501 has 16 divisors (see below), whose sum is σ = 134366400. Its totient is φ = 111369600.

The previous prime is 122551489. The next prime is 122551519. The reversal of 122551501 is 105155221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 122551501 - 2⁵ = 122551469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122551301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46230 + ... + 48808.

It is an arithmetic number, because the mean of its divisors is an integer number (8397900).

Almost surely, 2^122551501 is an apocalyptic number.

It is an amenable number.

122551501 is a deficient number, since it is larger than the sum of its proper divisors (11814899).

122551501 is a wasteful number, since it uses less digits than its factorization.

122551501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2700.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 122551501 is about 11070.2981441332. The cubic root of 122551501 is about 496.7137835476.

The spelling of 122551501 in words is "one hundred twenty-two million, five hundred fifty-one thousand, five hundred one".