51133321022 has 48 divisors (see below), whose sum is σ = 89497330272. Its totient is φ = 21463331520.

The previous prime is 51133320989. The next prime is 51133321027. The reversal of 51133321022 is 22012333115.

It is a super-2 number, since 2×51133321022² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51133321027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14277272 + ... + 14280852.

It is an arithmetic number, because the mean of its divisors is an integer number (1864527714).

Almost surely, 2^51133321022 is an apocalyptic number.

51133321022 is a deficient number, since it is larger than the sum of its proper divisors (38364009250).

51133321022 is a wasteful number, since it uses less digits than its factorization.

51133321022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4001 (or 3942 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 51133321022 its reverse (22012333115), we get a palindrome (73145654137).

The spelling of 51133321022 in words is "fifty-one billion, one hundred thirty-three million, three hundred twenty-one thousand, twenty-two".