22290120 has 64 divisors (see below), whose sum is σ = 74304000. Its totient is φ = 5943744.

The previous prime is 22290119. The next prime is 22290137. The reversal of 22290120 is 2109222.

It is a super-2 number, since 2×22290120² = 993698899228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 22290093 and 22290102.

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 15 ways as a sum of consecutive naturals, for example, 9240 + ... + 11399.

It is an arithmetic number, because the mean of its divisors is an integer number (1161000).

Almost surely, 2^22290120 is an apocalyptic number.

22290120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22290120 is an abundant number, since it is smaller than the sum of its proper divisors (52013880).

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

22290120 is a wasteful number, since it uses less digits than its factorization.

22290120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20659 (or 20649 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 22290120 is about 4721.2413621843. The cubic root of 22290120 is about 281.4302666560.

Adding to 22290120 its reverse (2109222), we get a palindrome (24399342).

The spelling of 22290120 in words is "twenty-two million, two hundred ninety thousand, one hundred twenty".