122774421 has 32 divisors (see below), whose sum is σ = 204715008. Its totient is φ = 63584640.

The previous prime is 122774411. The next prime is 122774423. The reversal of 122774421 is 124477221.

It is not a de Polignac number, because 122774421 - 2⁵ = 122774389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122774423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104986 + ... + 106148.

It is an arithmetic number, because the mean of its divisors is an integer number (6397344).

Almost surely, 2^122774421 is an apocalyptic number.

122774421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122774421 is a deficient number, since it is larger than the sum of its proper divisors (81940587).

122774421 is a wasteful number, since it uses less digits than its factorization.

122774421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641.

The product of its digits is 6272, while the sum is 30.

The square root of 122774421 is about 11080.3619525718. The cubic root of 122774421 is about 497.0147736514.

The spelling of 122774421 in words is "one hundred twenty-two million, seven hundred seventy-four thousand, four hundred twenty-one".