422456121 has 16 divisors (see below), whose sum is σ = 642777600. Its totient is φ = 274024944.

The previous prime is 422456117. The next prime is 422456143. The reversal of 422456121 is 121654224.

422456121 is a `hidden beast` number, since 4 + 2 + 2 + 45 + 612 + 1 = 666.

It is not a de Polignac number, because 422456121 - 2² = 422456117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (422456521) 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, 210441 + ... + 212438.

It is an arithmetic number, because the mean of its divisors is an integer number (40173600).

Almost surely, 2^422456121 is an apocalyptic number.

It is an amenable number.

422456121 is a deficient number, since it is larger than the sum of its proper divisors (220321479).

422456121 is a wasteful number, since it uses less digits than its factorization.

422456121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422925 (or 422919 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 422456121 is about 20553.7373973689. The cubic root of 422456121 is about 750.3442100018.

The spelling of 422456121 in words is "four hundred twenty-two million, four hundred fifty-six thousand, one hundred twenty-one".