22215085 has 16 divisors (see below), whose sum is σ = 28180800. Its totient is φ = 16765056.

The previous prime is 22215049. The next prime is 22215091. The reversal of 22215085 is 58051222.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22215085 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35697 + ... + 36313.

It is an arithmetic number, because the mean of its divisors is an integer number (1761300).

Almost surely, 2^22215085 is an apocalyptic number.

It is an amenable number.

22215085 is a deficient number, since it is larger than the sum of its proper divisors (5965715).

22215085 is a wasteful number, since it uses less digits than its factorization.

22215085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 22215085 is about 4713.2881303820. The cubic root of 22215085 is about 281.1141197125.

The spelling of 22215085 in words is "twenty-two million, two hundred fifteen thousand, eighty-five".