122256505 has 32 divisors (see below), whose sum is σ = 171917568. Its totient is φ = 81734400.

The previous prime is 122256481. The next prime is 122256527. The reversal of 122256505 is 505652221.

It is not a de Polignac number, because 122256505 - 2⁷ = 122256377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 369190 + ... + 369520.

It is an arithmetic number, because the mean of its divisors is an integer number (5372424).

Almost surely, 2^122256505 is an apocalyptic number.

It is an amenable number.

122256505 is a deficient number, since it is larger than the sum of its proper divisors (49661063).

122256505 is a wasteful number, since it uses less digits than its factorization.

122256505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 122256505 is about 11056.9663561033. The cubic root of 122256505 is about 496.3149136681.

The spelling of 122256505 in words is "one hundred twenty-two million, two hundred fifty-six thousand, five hundred five".