22119990 has 64 divisors (see below), whose sum is σ = 56471040. Its totient is φ = 5529600.

The previous prime is 22119989. The next prime is 22120031. The reversal of 22119990 is 9991122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85942 + ... + 86198.

It is an arithmetic number, because the mean of its divisors is an integer number (882360).

Almost surely, 2^22119990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22119990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28235520).

22119990 is an abundant number, since it is smaller than the sum of its proper divisors (34351050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22119990 is a wasteful number, since it uses less digits than its factorization.

22119990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437.

The product of its (nonzero) digits is 2916, while the sum is 33.

The square root of 22119990 is about 4703.1893434137. The cubic root of 22119990 is about 280.7124289633.

The spelling of 22119990 in words is "twenty-two million, one hundred nineteen thousand, nine hundred ninety".