51222222017732 has 12 divisors (see below), whose sum is σ = 94911764327100. Its totient is φ = 24104575067136.

The previous prime is 51222222017719. The next prime is 51222222017789. The reversal of 51222222017732 is 23771022222215.

It can be written as a sum of positive squares in 2 ways, for example, as 44093663773636 + 7128558244096 = 6640306^2 + 2669936^2 .

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, 376633985357 + ... + 376633985492.

It is an arithmetic number, because the mean of its divisors is an integer number (7909313693925).

Almost surely, 2^{51222222017732} is an apocalyptic number.

It is an amenable number.

51222222017732 is a deficient number, since it is larger than the sum of its proper divisors (43689542309368).

51222222017732 is a wasteful number, since it uses less digits than its factorization.

51222222017732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753267970870 (or 753267970868 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 38.

Adding to 51222222017732 its reverse (23771022222215), we get a palindrome (74993244239947).

The spelling of 51222222017732 in words is "fifty-one trillion, two hundred twenty-two billion, two hundred twenty-two million, seventeen thousand, seven hundred thirty-two".