115215222 has 16 divisors (see below), whose sum is σ = 243985392. Its totient is φ = 36145920.

The previous prime is 115215203. The next prime is 115215227. The reversal of 115215222 is 222512511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115215227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564679 + ... + 564882.

It is an arithmetic number, because the mean of its divisors is an integer number (15249087).

Almost surely, 2^115215222 is an apocalyptic number.

115215222 is an abundant number, since it is smaller than the sum of its proper divisors (128770170).

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

115215222 is a wasteful number, since it uses less digits than its factorization.

115215222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129583.

The product of its digits is 400, while the sum is 21.

The square root of 115215222 is about 10733.8353816332. The cubic root of 115215222 is about 486.5975900165.

Adding to 115215222 its reverse (222512511), we get a palindrome (337727733).

The spelling of 115215222 in words is "one hundred fifteen million, two hundred fifteen thousand, two hundred twenty-two".