22270115 has 32 divisors (see below), whose sum is σ = 32503680. Its totient is φ = 14321664.

The previous prime is 22270111. The next prime is 22270139. The reversal of 22270115 is 51107222.

It is not a de Polignac number, because 22270115 - 2² = 22270111 is a prime.

It is a super-2 number, since 2×22270115² = 991916044226450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22270111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37259 + ... + 37851.

It is an arithmetic number, because the mean of its divisors is an integer number (1015740).

Almost surely, 2^22270115 is an apocalyptic number.

22270115 is a deficient number, since it is larger than the sum of its proper divisors (10233565).

22270115 is a wasteful number, since it uses less digits than its factorization.

22270115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 22270115 is about 4719.1222700837. The cubic root of 22270115 is about 281.3460485120.

Adding to 22270115 its reverse (51107222), we get a palindrome (73377337).

The spelling of 22270115 in words is "twenty-two million, two hundred seventy thousand, one hundred fifteen".