221431416334575 has 24 divisors (see below), whose sum is σ = 366108407669376. Its totient is φ = 118094024412000.

The previous prime is 221431416334573. The next prime is 221431416334613. The reversal of 221431416334575 is 575433614134122.

It is not a de Polignac number, because 221431416334575 - 2¹ = 221431416334573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221431416334571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30870121 + ... + 37360770.

It is an arithmetic number, because the mean of its divisors is an integer number (15254516986224).

Almost surely, 2^{221431416334575} is an apocalyptic number.

221431416334575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

221431416334575 is a deficient number, since it is larger than the sum of its proper divisors (144676991334801).

221431416334575 is a wasteful number, since it uses less digits than its factorization.

221431416334575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68274175 (or 68274170 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 51.

The spelling of 221431416334575 in words is "two hundred twenty-one trillion, four hundred thirty-one billion, four hundred sixteen million, three hundred thirty-four thousand, five hundred seventy-five".