115222032 has 120 divisors (see below), whose sum is σ = 333171384. Its totient is φ = 37158912.

The previous prime is 115222031. The next prime is 115222049. The reversal of 115222032 is 230222511.

It can be written as a sum of positive squares in 4 ways, for example, as 646416 + 114575616 = 804^2 + 10704^2 .

It is a super-2 number, since 2×115222032² = 26552233316418048, which contains 22 as substring.

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 = 115221996 and 115222014.

It is not an unprimeable number, because it can be changed into a prime (115222031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1019608 + ... + 1019720.

Almost surely, 2^115222032 is an apocalyptic number.

115222032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115222032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166585692).

115222032 is an abundant number, since it is smaller than the sum of its proper divisors (217949352).

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

115222032 is a wasteful number, since it uses less digits than its factorization.

115222032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297 (or 288 counting only the distinct ones).

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

The square root of 115222032 is about 10734.1525981327. The cubic root of 115222032 is about 486.6071768988.

Adding to 115222032 its reverse (230222511), we get a palindrome (345444543).

The spelling of 115222032 in words is "one hundred fifteen million, two hundred twenty-two thousand, thirty-two".