51122223051 has 8 divisors (see below), whose sum is σ = 68468628480. Its totient is φ = 33928649832.

The previous prime is 51122223017. The next prime is 51122223059. The reversal of 51122223051 is 15032222115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51122223051 - 2²⁵ = 51088668619 is a prime.

It is a super-2 number, since 2×51122223051² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51122223059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38207271 + ... + 38208608.

It is an arithmetic number, because the mean of its divisors is an integer number (8558578560).

Almost surely, 2^51122223051 is an apocalyptic number.

51122223051 is a deficient number, since it is larger than the sum of its proper divisors (17346405429).

51122223051 is a wasteful number, since it uses less digits than its factorization.

51122223051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76416105.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 51122223051 its reverse (15032222115), we get a palindrome (66154445166).

The spelling of 51122223051 in words is "fifty-one billion, one hundred twenty-two million, two hundred twenty-three thousand, fifty-one".