22321100220 has 24 divisors (see below), whose sum is σ = 62499080784. Its totient is φ = 5952293376.

The previous prime is 22321100201. The next prime is 22321100227. The reversal of 22321100220 is 2200112322.

It is a happy number.

It is a super-3 number, since 3×22321100220³ (a number of 32 digits) contains 333 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 22321100220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22321100227) 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 7 ways as a sum of consecutive naturals, for example, 186009109 + ... + 186009228.

It is an arithmetic number, because the mean of its divisors is an integer number (2604128366).

Almost surely, 2^22321100220 is an apocalyptic number.

22321100220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22321100220 is an abundant number, since it is smaller than the sum of its proper divisors (40177980564).

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

22321100220 is a wasteful number, since it uses less digits than its factorization.

22321100220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372018349 (or 372018347 counting only the distinct ones).

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

Adding to 22321100220 its reverse (2200112322), we get a palindrome (24521212542).

The spelling of 22321100220 in words is "twenty-two billion, three hundred twenty-one million, one hundred thousand, two hundred twenty".