52213122 has 24 divisors (see below), whose sum is σ = 121831164. Its totient is φ = 16065504.

The previous prime is 52213093. The next prime is 52213123. The reversal of 52213122 is 22131225.

It can be written as a sum of positive squares in 2 ways, for example, as 49154121 + 3059001 = 7011^2 + 1749^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 52213095 and 52213104.

It is not an unprimeable number, because it can be changed into a prime (52213123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111333 + ... + 111800.

Almost surely, 2^52213122 is an apocalyptic number.

52213122 is an abundant number, since it is smaller than the sum of its proper divisors (69618042).

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

52213122 is a wasteful number, since it uses less digits than its factorization.

52213122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223154 (or 223151 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 52213122 is about 7225.8647925352. The cubic root of 52213122 is about 373.7603438560.

Adding to 52213122 its reverse (22131225), we get a palindrome (74344347).

The spelling of 52213122 in words is "fifty-two million, two hundred thirteen thousand, one hundred twenty-two".