51122244254512 has 80 divisors (see below), whose sum is σ = 104703047569120. Its totient is φ = 24113487974400.

The previous prime is 51122244254489. The next prime is 51122244254539. The reversal of 51122244254512 is 21545244222115.

It is a super-2 number, since 2×51122244254512² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1789165858 + ... + 1789194430.

It is an arithmetic number, because the mean of its divisors is an integer number (1308788094614).

Almost surely, 2^{51122244254512} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51122244254512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52351523784560).

51122244254512 is an abundant number, since it is smaller than the sum of its proper divisors (53580803314608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51122244254512 is a wasteful number, since it uses less digits than its factorization.

51122244254512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53262 (or 53256 counting only the distinct ones).

The product of its digits is 256000, while the sum is 40.

Adding to 51122244254512 its reverse (21545244222115), we get a palindrome (72667488476627).

The spelling of 51122244254512 in words is "fifty-one trillion, one hundred twenty-two billion, two hundred forty-four million, two hundred fifty-four thousand, five hundred twelve".