51222130011 has 12 divisors (see below), whose sum is σ = 79678869088. Its totient is φ = 31521310704.

The previous prime is 51222129943. The next prime is 51222130019. The reversal of 51222130011 is 11003122215.

51222130011 is a `hidden beast` number, since 512 + 22 + 130 + 0 + 1 + 1 = 666.

It is not a de Polignac number, because 51222130011 - 2⁷ = 51222129883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51222130019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 218897875 + ... + 218898108.

Almost surely, 2^51222130011 is an apocalyptic number.

51222130011 is a deficient number, since it is larger than the sum of its proper divisors (28456739077).

51222130011 is a wasteful number, since it uses less digits than its factorization.

51222130011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437796002 (or 437795999 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 51222130011 its reverse (11003122215), we get a palindrome (62225252226).

The spelling of 51222130011 in words is "fifty-one billion, two hundred twenty-two million, one hundred thirty thousand, eleven".