22215115 has 8 divisors (see below), whose sum is σ = 28708848. Its totient is φ = 16404960.

The previous prime is 22215101. The next prime is 22215157. The reversal of 22215115 is 51151222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22215115 - 2²¹ = 20117963 is a prime.

It is a super-2 number, since 2×22215115² = 987022668926450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22215092 and 22215101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170821 + ... + 170950.

It is an arithmetic number, because the mean of its divisors is an integer number (3588606).

Almost surely, 2^22215115 is an apocalyptic number.

22215115 is a deficient number, since it is larger than the sum of its proper divisors (6493733).

22215115 is a wasteful number, since it uses less digits than its factorization.

22215115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341789.

The product of its digits is 200, while the sum is 19.

The square root of 22215115 is about 4713.2913128726. The cubic root of 22215115 is about 281.1142462545.

Adding to 22215115 its reverse (51151222), we get a palindrome (73366337).

The spelling of 22215115 in words is "twenty-two million, two hundred fifteen thousand, one hundred fifteen".