422312121 has 24 divisors (see below), whose sum is σ = 760528704. Its totient is φ = 219382560.

The previous prime is 422312087. The next prime is 422312153. The reversal of 422312121 is 121213224.

It is a happy number.

422312121 is a `hidden beast` number, since 422 + 31 + 212 + 1 = 666.

It is not a de Polignac number, because 422312121 - 2⁹ = 422311609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 422312094 and 422312103.

It is not an unprimeable number, because it can be changed into a prime (422312161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 304006 + ... + 305391.

It is an arithmetic number, because the mean of its divisors is an integer number (31688696).

Almost surely, 2^422312121 is an apocalyptic number.

It is an amenable number.

422312121 is a deficient number, since it is larger than the sum of its proper divisors (338216583).

422312121 is a wasteful number, since it uses less digits than its factorization.

422312121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609421 (or 609418 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 422312121 is about 20550.2340862580. The cubic root of 422312121 is about 750.2589452529.

Adding to 422312121 its reverse (121213224), we get a palindrome (543525345).

The spelling of 422312121 in words is "four hundred twenty-two million, three hundred twelve thousand, one hundred twenty-one".