22205115 has 12 divisors (see below), whose sum is σ = 38488944. Its totient is φ = 11842704.

The previous prime is 22205107. The next prime is 22205119. The reversal of 22205115 is 51150222.

It is not a de Polignac number, because 22205115 - 2³ = 22205107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22205119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 246679 + ... + 246768.

It is an arithmetic number, because the mean of its divisors is an integer number (3207412).

Almost surely, 2^22205115 is an apocalyptic number.

22205115 is a deficient number, since it is larger than the sum of its proper divisors (16283829).

22205115 is a wasteful number, since it uses less digits than its factorization.

22205115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493458 (or 493455 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 22205115 is about 4712.2303636389. The cubic root of 22205115 is about 281.0720592964.

Adding to 22205115 its reverse (51150222), we get a palindrome (73355337).

The spelling of 22205115 in words is "twenty-two million, two hundred five thousand, one hundred fifteen".