51222233320 has 32 divisors (see below), whose sum is σ = 115940160000. Its totient is φ = 20366202688.

The previous prime is 51222233281. The next prime is 51222233339. The reversal of 51222233320 is 2333222215.

It is a super-3 number, since 3×51222233320³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3827320 + ... + 3840679.

It is an arithmetic number, because the mean of its divisors is an integer number (3623130000).

Almost surely, 2^51222233320 is an apocalyptic number.

It is an amenable number.

51222233320 is an abundant number, since it is smaller than the sum of its proper divisors (64717926680).

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

51222233320 is a wasteful number, since it uses less digits than its factorization.

51222233320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7668177 (or 7668173 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 51222233320 its reverse (2333222215), we get a palindrome (53555455535).

The spelling of 51222233320 in words is "fifty-one billion, two hundred twenty-two million, two hundred thirty-three thousand, three hundred twenty".