52212120 has 64 divisors (see below), whose sum is σ = 157338720. Its totient is φ = 13860864.

The previous prime is 52212073. The next prime is 52212131. The reversal of 52212120 is 2121225.

It is a super-2 number, since 2×52212120² = 5452210949788800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 52212120.

It is a congruent number.

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, 29994 + ... + 31686.

Almost surely, 2^52212120 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 52212120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78669360).

52212120 is an abundant number, since it is smaller than the sum of its proper divisors (105126600).

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

52212120 is a wasteful number, since it uses less digits than its factorization.

52212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1964 (or 1960 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 52212120 is about 7225.7954579409. The cubic root of 52212120 is about 373.7579529484.

Adding to 52212120 its reverse (2121225), we get a palindrome (54333345).

The spelling of 52212120 in words is "fifty-two million, two hundred twelve thousand, one hundred twenty".