222551100200 has 384 divisors, whose sum is σ = 657239184000. Its totient is φ = 68851814400.

The previous prime is 222551100169. The next prime is 222551100241. The reversal of 222551100200 is 2001155222.

It is a happy number.

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

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, 20100266 + ... + 20111334.

It is an arithmetic number, because the mean of its divisors is an integer number (1711560375).

Almost surely, 2^222551100200 is an apocalyptic number.

222551100200 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 222551100200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328619592000).

222551100200 is an abundant number, since it is smaller than the sum of its proper divisors (434688083800).

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

222551100200 is a wasteful number, since it uses less digits than its factorization.

222551100200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11165 (or 11156 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

Adding to 222551100200 its reverse (2001155222), we get a palindrome (224552255422).

The spelling of 222551100200 in words is "two hundred twenty-two billion, five hundred fifty-one million, one hundred thousand, two hundred".