252151522222 has 16 divisors (see below), whose sum is σ = 388748368512. Its totient is φ = 122573973600.

The previous prime is 252151522187. The next prime is 252151522229. The reversal of 252151522222 is 222225151252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252151522229) 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 7 ways as a sum of consecutive naturals, for example, 1213278 + ... + 1405825.

It is an arithmetic number, because the mean of its divisors is an integer number (24296773032).

Almost surely, 2^252151522222 is an apocalyptic number.

252151522222 is a deficient number, since it is larger than the sum of its proper divisors (136596846290).

252151522222 is a wasteful number, since it uses less digits than its factorization.

252151522222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2620443.

The product of its digits is 16000, while the sum is 31.

Adding to 252151522222 its reverse (222225151252), we get a palindrome (474376673474).

The spelling of 252151522222 in words is "two hundred fifty-two billion, one hundred fifty-one million, five hundred twenty-two thousand, two hundred twenty-two".