251135201122412 has 12 divisors (see below), whose sum is σ = 439511205269136. Its totient is φ = 125560571045520.

The previous prime is 251135201122409. The next prime is 251135201122483. The reversal of 251135201122412 is 214221102531152.

It is a happy number.

251135201122412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1757298539 + ... + 1757441442.

It is an arithmetic number, because the mean of its divisors is an integer number (36625933772428).

Almost surely, 2^{251135201122412} is an apocalyptic number.

It is an amenable number.

251135201122412 is a deficient number, since it is larger than the sum of its proper divisors (188376004146724).

251135201122412 is a wasteful number, since it uses less digits than its factorization.

251135201122412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3514757848 (or 3514757846 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

Adding to 251135201122412 its reverse (214221102531152), we get a palindrome (465356303653564).

The spelling of 251135201122412 in words is "two hundred fifty-one trillion, one hundred thirty-five billion, two hundred one million, one hundred twenty-two thousand, four hundred twelve".