221422125152475 has 72 divisors (see below), whose sum is σ = 428686405907760. Its totient is φ = 108602581559040.

The previous prime is 221422125152453. The next prime is 221422125152497. The reversal of 221422125152475 is 574251521224122.

221422125152475 is a `hidden beast` number, since 2 + 2 + 1 + 4 + 2 + 2 + 1 + 2 + 51 + 524 + 75 = 666.

It is an interprime number because it is at equal distance from previous prime (221422125152453) and next prime (221422125152497).

It is not a de Polignac number, because 221422125152475 - 2¹¹ = 221422125150427 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 221422125152475.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 139919257 + ... + 141492906.

It is an arithmetic number, because the mean of its divisors is an integer number (5953977859830).

Almost surely, 2^{221422125152475} is an apocalyptic number.

221422125152475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

221422125152475 is a deficient number, since it is larger than the sum of its proper divisors (207264280755285).

221422125152475 is a wasteful number, since it uses less digits than its factorization.

221422125152475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281412461 (or 281412453 counting only the distinct ones).

The product of its digits is 896000, while the sum is 45.

Adding to 221422125152475 its reverse (574251521224122), we get a palindrome (795673646376597).

The spelling of 221422125152475 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, one hundred twenty-five million, one hundred fifty-two thousand, four hundred seventy-five".