51115201022 has 8 divisors (see below), whose sum is σ = 80708212200. Its totient is φ = 24212463624.

The previous prime is 51115200967. The next prime is 51115201051. The reversal of 51115201022 is 22010251115.

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

It is a super-2 number, since 2×51115201022² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51115200985 and 51115201003.

It is a congruent number.

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, 672568397 + ... + 672568472.

It is an arithmetic number, because the mean of its divisors is an integer number (10088526525).

Almost surely, 2^51115201022 is an apocalyptic number.

51115201022 is a deficient number, since it is larger than the sum of its proper divisors (29593011178).

51115201022 is a wasteful number, since it uses less digits than its factorization.

51115201022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345136890.

The product of its (nonzero) digits is 200, while the sum is 20.

Adding to 51115201022 its reverse (22010251115), we get a palindrome (73125452137).

The spelling of 51115201022 in words is "fifty-one billion, one hundred fifteen million, two hundred one thousand, twenty-two".