122242456 has 32 divisors (see below), whose sum is σ = 267300000. Its totient is φ = 52388448.

The previous prime is 122242429. The next prime is 122242457. The reversal of 122242456 is 654242221.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122242457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19531 + ... + 25018.

It is an arithmetic number, because the mean of its divisors is an integer number (8353125).

Almost surely, 2^122242456 is an apocalyptic number.

It is an amenable number.

122242456 is an abundant number, since it is smaller than the sum of its proper divisors (145057544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122242456 is an equidigital number, since it uses as much as digits as its factorization.

122242456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44576 (or 44558 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

The square root of 122242456 is about 11056.3310370122. The cubic root of 122242456 is about 496.2959017408.

Adding to 122242456 its reverse (654242221), we get a palindrome (776484677).

The spelling of 122242456 in words is "one hundred twenty-two million, two hundred forty-two thousand, four hundred fifty-six".