222021212200 has 48 divisors (see below), whose sum is σ = 521023661280. Its totient is φ = 87978490560.

The previous prime is 222021212173. The next prime is 222021212207. The reversal of 222021212200 is 2212120222.

It is not an unprimeable number, because it can be changed into a prime (222021212207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5166012 + ... + 5208811.

It is an arithmetic number, because the mean of its divisors is an integer number (10854659610).

Almost surely, 2^222021212200 is an apocalyptic number.

222021212200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222021212200 is an abundant number, since it is smaller than the sum of its proper divisors (299002449080).

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

222021212200 is a wasteful number, since it uses less digits than its factorization.

222021212200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10374946 (or 10374937 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 222021212200 its reverse (2212120222), we get a palindrome (224233332422).

The spelling of 222021212200 in words is "two hundred twenty-two billion, twenty-one million, two hundred twelve thousand, two hundred".