221223022200 has 144 divisors (see below), whose sum is σ = 763020356280. Its totient is φ = 57398388480.

The previous prime is 221223022193. The next prime is 221223022243. The reversal of 221223022200 is 2220322122.

221223022200 is a `hidden beast` number, since 2 + 212 + 230 + 2 + 220 + 0 = 666.

221223022200 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1594234 + ... + 1727433.

Almost surely, 2^221223022200 is an apocalyptic number.

221223022200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221223022200 is an abundant number, since it is smaller than the sum of its proper divisors (541797334080).

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

221223022200 is a wasteful number, since it uses less digits than its factorization.

221223022200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3321726 (or 3321714 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 221223022200 its reverse (2220322122), we get a palindrome (223443344322).

The spelling of 221223022200 in words is "two hundred twenty-one billion, two hundred twenty-three million, twenty-two thousand, two hundred".