22206120 has 32 divisors (see below), whose sum is σ = 66618720. Its totient is φ = 5921600.

The previous prime is 22206101. The next prime is 22206139. The reversal of 22206120 is 2160222.

It is an interprime number because it is at equal distance from previous prime (22206101) and next prime (22206139).

It is a super-2 number, since 2×22206120² = 986223530908800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22206120.

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, 92406 + ... + 92645.

It is an arithmetic number, because the mean of its divisors is an integer number (2081835).

Almost surely, 2^22206120 is an apocalyptic number.

22206120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22206120 is an abundant number, since it is smaller than the sum of its proper divisors (44412600).

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

22206120 is a wasteful number, since it uses less digits than its factorization.

22206120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185065 (or 185061 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 22206120 is about 4712.3369998335. The cubic root of 22206120 is about 281.0762996581.

Adding to 22206120 its reverse (2160222), we get a palindrome (24366342).

The spelling of 22206120 in words is "twenty-two million, two hundred six thousand, one hundred twenty".