22219885 has 8 divisors (see below), whose sum is σ = 26703000. Its totient is φ = 17749824.

The previous prime is 22219877. The next prime is 22219891. The reversal of 22219885 is 58891222.

It can be written as a sum of positive squares in 4 ways, for example, as 1590121 + 20629764 = 1261^2 + 4542^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 22219885 - 2³ = 22219877 is a prime.

It is a congruent number.

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, 991 + ... + 6739.

It is an arithmetic number, because the mean of its divisors is an integer number (3337875).

Almost surely, 2^22219885 is an apocalyptic number.

It is an amenable number.

22219885 is a deficient number, since it is larger than the sum of its proper divisors (4483115).

22219885 is an equidigital number, since it uses as much as digits as its factorization.

22219885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6527.

The product of its digits is 23040, while the sum is 37.

The square root of 22219885 is about 4713.7973015394. The cubic root of 22219885 is about 281.1343649738.

It can be divided in two parts, 22219 and 885, that added together give a square (23104 = 152²).

The spelling of 22219885 in words is "twenty-two million, two hundred nineteen thousand, eight hundred eighty-five".