22218665190 has 32 divisors (see below), whose sum is σ = 53603997696. Its totient is φ = 5893955040.

The previous prime is 22218665177. The next prime is 22218665197. The reversal of 22218665190 is 9156681222.

It is a super-2 number, since 2×22218665190² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22218665197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1933072 + ... + 1944531.

It is an arithmetic number, because the mean of its divisors is an integer number (1675124928).

Almost surely, 2^22218665190 is an apocalyptic number.

22218665190 is an abundant number, since it is smaller than the sum of its proper divisors (31385332506).

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

22218665190 is a wasteful number, since it uses less digits than its factorization.

22218665190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3877804.

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 22218665190 in words is "twenty-two billion, two hundred eighteen million, six hundred sixty-five thousand, one hundred ninety".