222131115 has 36 divisors (see below), whose sum is σ = 389332944. Its totient is φ = 117158016.

The previous prime is 222131113. The next prime is 222131131. The reversal of 222131115 is 511131222.

It is not a de Polignac number, because 222131115 - 2¹ = 222131113 is a prime.

It is a super-2 number, since 2×222131115² = 98684464502286450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222131111) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 844474 + ... + 844736.

It is an arithmetic number, because the mean of its divisors is an integer number (10814804).

Almost surely, 2^222131115 is an apocalyptic number.

222131115 is a deficient number, since it is larger than the sum of its proper divisors (167201829).

222131115 is a wasteful number, since it uses less digits than its factorization.

222131115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548 (or 408 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 222131115 is about 14904.0637075933. The cubic root of 222131115 is about 605.6240765577.

Adding to 222131115 its reverse (511131222), we get a palindrome (733262337).

The spelling of 222131115 in words is "two hundred twenty-two million, one hundred thirty-one thousand, one hundred fifteen".