222002221200 has 60 divisors (see below), whose sum is σ = 711147119088. Its totient is φ = 59200592000.

The previous prime is 222002221169. The next prime is 222002221219. The reversal of 222002221200 is 2122200222.

It is a tau number, because it is divible by the number of its divisors (60).

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 222002221200.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92499726 + ... + 92502125.

Almost surely, 2^222002221200 is an apocalyptic number.

222002221200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222002221200 is an abundant number, since it is smaller than the sum of its proper divisors (489144897888).

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

222002221200 is a wasteful number, since it uses less digits than its factorization.

222002221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185001872 (or 185001861 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 222002221200 its reverse (2122200222), we get a palindrome (224124421422).

The spelling of 222002221200 in words is "two hundred twenty-two billion, two million, two hundred twenty-one thousand, two hundred".