52440231222 has 80 divisors (see below), whose sum is σ = 121418237952. Its totient is φ = 16899081840.

The previous prime is 52440231187. The next prime is 52440231241. The reversal of 52440231222 is 22213204425.

52440231222 is a `hidden beast` number, since 5 + 2 + 4 + 402 + 31 + 222 = 666.

It is a super-2 number, since 2×52440231222² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5534533 + ... + 5543999.

Almost surely, 2^52440231222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52440231222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60709118976).

52440231222 is an abundant number, since it is smaller than the sum of its proper divisors (68978006730).

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

52440231222 is a wasteful number, since it uses less digits than its factorization.

52440231222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10615 (or 10606 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 52440231222 its reverse (22213204425), we get a palindrome (74653435647).

The spelling of 52440231222 in words is "fifty-two billion, four hundred forty million, two hundred thirty-one thousand, two hundred twenty-two".