22215109 has 8 divisors (see below), whose sum is σ = 25868160. Its totient is φ = 18681936.

The previous prime is 22215101. The next prime is 22215157. The reversal of 22215109 is 90151222.

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

It is not a de Polignac number, because 22215109 - 2³ = 22215101 is a prime.

It is a super-2 number, since 2×22215109² = 987022135763762, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22215109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22215101) 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, 29569 + ... + 30310.

It is an arithmetic number, because the mean of its divisors is an integer number (3233520).

Almost surely, 2^22215109 is an apocalyptic number.

It is an amenable number.

22215109 is a deficient number, since it is larger than the sum of its proper divisors (3653051).

22215109 is an equidigital number, since it uses as much as digits as its factorization.

22215109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59939.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 22215109 is about 4713.2906763746. The cubic root of 22215109 is about 281.1142209461.

The spelling of 22215109 in words is "twenty-two million, two hundred fifteen thousand, one hundred nine".