422521412531 has 4 divisors (see below), whose sum is σ = 440891908752. Its totient is φ = 404150916312.

The previous prime is 422521412527. The next prime is 422521412543. The reversal of 422521412531 is 135214125224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 422521412531 - 2² = 422521412527 is a prime.

It is a super-2 number, since 2×422521412531² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (422521412431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9185248076 + ... + 9185248121.

It is an arithmetic number, because the mean of its divisors is an integer number (110222977188).

Almost surely, 2^422521412531 is an apocalyptic number.

422521412531 is a deficient number, since it is larger than the sum of its proper divisors (18370496221).

422521412531 is a wasteful number, since it uses less digits than its factorization.

422521412531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18370496220.

The product of its digits is 19200, while the sum is 32.

Adding to 422521412531 its reverse (135214125224), we get a palindrome (557735537755).

The spelling of 422521412531 in words is "four hundred twenty-two billion, five hundred twenty-one million, four hundred twelve thousand, five hundred thirty-one".