252242120001 has 4 divisors (see below), whose sum is σ = 336322826672. Its totient is φ = 168161413332.

The previous prime is 252242119993. The next prime is 252242120017. The reversal of 252242120001 is 100021242252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 252242120001 - 2³ = 252242119993 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 252242120001.

It is not an unprimeable number, because it can be changed into a prime (252242120051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42040353331 + ... + 42040353336.

It is an arithmetic number, because the mean of its divisors is an integer number (84080706668).

Almost surely, 2^252242120001 is an apocalyptic number.

It is an amenable number.

252242120001 is a deficient number, since it is larger than the sum of its proper divisors (84080706671).

252242120001 is an equidigital number, since it uses as much as digits as its factorization.

252242120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84080706670.

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 252242120001 its reverse (100021242252), we get a palindrome (352263362253).

The spelling of 252242120001 in words is "two hundred fifty-two billion, two hundred forty-two million, one hundred twenty thousand, one".