20164222 has 32 divisors (see below), whose sum is σ = 34473600. Its totient is φ = 8779008.

The previous prime is 20164219. The next prime is 20164231. The reversal of 20164222 is 22246102.

It is a self number, because there is not a number n which added to its sum of digits gives 20164222.

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, 35154 + ... + 35722.

It is an arithmetic number, because the mean of its divisors is an integer number (1077300).

Almost surely, 2^20164222 is an apocalyptic number.

20164222 is a deficient number, since it is larger than the sum of its proper divisors (14309378).

20164222 is a wasteful number, since it uses less digits than its factorization.

20164222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 20164222 is about 4490.4589965838. The cubic root of 20164222 is about 272.1826825692.

The spelling of 20164222 in words is "twenty million, one hundred sixty-four thousand, two hundred twenty-two".