252222134143121 has 32 divisors (see below), whose sum is σ = 256664643929856. Its totient is φ = 247806310752000.

The previous prime is 252222134143103. The next prime is 252222134143127. The reversal of 252222134143121 is 121341431222252.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252222134143121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (252222134143127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88158731231 + ... + 88158734091.

It is an arithmetic number, because the mean of its divisors is an integer number (8020770122808).

Almost surely, 2^{252222134143121} is an apocalyptic number.

It is an amenable number.

252222134143121 is a deficient number, since it is larger than the sum of its proper divisors (4442509786735).

252222134143121 is a wasteful number, since it uses less digits than its factorization.

252222134143121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6473.

The product of its digits is 46080, while the sum is 35.

Adding to 252222134143121 its reverse (121341431222252), we get a palindrome (373563565365373).

The spelling of 252222134143121 in words is "two hundred fifty-two trillion, two hundred twenty-two billion, one hundred thirty-four million, one hundred forty-three thousand, one hundred twenty-one".