51116204122 has 4 divisors (see below), whose sum is σ = 76674306186. Its totient is φ = 25558102060.

The previous prime is 51116204107. The next prime is 51116204143. The reversal of 51116204122 is 22140261115.

51116204122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 25580483721 + 25535720401 = 159939^2 + 159799^2 .

It is a super-2 number, since 2×51116204122² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12779051029 + ... + 12779051032.

Almost surely, 2^51116204122 is an apocalyptic number.

51116204122 is a deficient number, since it is larger than the sum of its proper divisors (25558102064).

51116204122 is a wasteful number, since it uses less digits than its factorization.

51116204122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25558102063.

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 51116204122 its reverse (22140261115), we get a palindrome (73256465237).

The spelling of 51116204122 in words is "fifty-one billion, one hundred sixteen million, two hundred four thousand, one hundred twenty-two".