222201202122200 has 384 divisors, whose sum is σ = 625416247941120. Its totient is φ = 71775424512000.

The previous prime is 222201202122197. The next prime is 222201202122227. The reversal of 222201202122200 is 2221202102222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 627497597 + ... + 627851603.

It is an arithmetic number, because the mean of its divisors is an integer number (1628688145680).

Almost surely, 2^{222201202122200} is an apocalyptic number.

222201202122200 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 222201202122200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312708123970560).

222201202122200 is an abundant number, since it is smaller than the sum of its proper divisors (403215045818920).

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

222201202122200 is a wasteful number, since it uses less digits than its factorization.

222201202122200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354347 (or 354338 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 222201202122200 its reverse (2221202102222), we get a palindrome (224422404224422).

The spelling of 222201202122200 in words is "two hundred twenty-two trillion, two hundred one billion, two hundred two million, one hundred twenty-two thousand, two hundred".