22202118 has 24 divisors (see below), whose sum is σ = 48648600. Its totient is φ = 7317024.

The previous prime is 22202111. The next prime is 22202137. The reversal of 22202118 is 81120222.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 22202118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22202111) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 5328 + ... + 8531.

It is an arithmetic number, because the mean of its divisors is an integer number (2027025).

Almost surely, 2^22202118 is an apocalyptic number.

22202118 is an abundant number, since it is smaller than the sum of its proper divisors (26446482).

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

22202118 is a wasteful number, since it uses less digits than its factorization.

22202118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13956 (or 13953 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 22202118 is about 4711.9123506279. The cubic root of 22202118 is about 281.0594133983.

The spelling of 22202118 in words is "twenty-two million, two hundred two thousand, one hundred eighteen".