222202121200 has 60 divisors (see below), whose sum is σ = 534817065400. Its totient is φ = 88718273280.

The previous prime is 222202121179. The next prime is 222202121201. The reversal of 222202121200 is 2121202222.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222202121201) 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, 288975 + ... + 726574.

Almost surely, 2^222202121200 is an apocalyptic number.

222202121200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222202121200 is an abundant number, since it is smaller than the sum of its proper divisors (312614944200).

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

222202121200 is a wasteful number, since it uses less digits than its factorization.

222202121200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016114 (or 1016103 counting only the distinct ones).

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

Adding to 222202121200 its reverse (2121202222), we get a palindrome (224323323422).

The spelling of 222202121200 in words is "two hundred twenty-two billion, two hundred two million, one hundred twenty-one thousand, two hundred".