222021021200 has 120 divisors (see below), whose sum is σ = 582063861600. Its totient is φ = 80711756800.

The previous prime is 222021021199. The next prime is 222021021259. The reversal of 222021021200 is 2120120222.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25731287 + ... + 25739913.

It is an arithmetic number, because the mean of its divisors is an integer number (4850532180).

Almost surely, 2^222021021200 is an apocalyptic number.

222021021200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222021021200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291031930800).

222021021200 is an abundant number, since it is smaller than the sum of its proper divisors (360042840400).

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

222021021200 is a wasteful number, since it uses less digits than its factorization.

222021021200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14505 (or 14494 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 222021021200 its reverse (2120120222), we get a palindrome (224141141422).

The spelling of 222021021200 in words is "two hundred twenty-two billion, twenty-one million, twenty-one thousand, two hundred".