52220012112 has 60 divisors (see below), whose sum is σ = 149707998804. Its totient is φ = 16982115840.

The previous prime is 52220012111. The next prime is 52220012149. The reversal of 52220012112 is 21121002225.

52220012112 is a `hidden beast` number, since 522 + 20 + 0 + 12 + 112 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2760031296 + 49459980816 = 52536^2 + 222396^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52220012111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4416523 + ... + 4428330.

Almost surely, 2^52220012112 is an apocalyptic number.

It is an amenable number.

52220012112 is an abundant number, since it is smaller than the sum of its proper divisors (97487986692).

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

52220012112 is a wasteful number, since it uses less digits than its factorization.

52220012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8844908 (or 8844899 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

Adding to 52220012112 its reverse (21121002225), we get a palindrome (73341014337).

The spelling of 52220012112 in words is "fifty-two billion, two hundred twenty million, twelve thousand, one hundred twelve".