222201100000 has 144 divisors (see below), whose sum is σ = 596498977872. Its totient is φ = 80800000000.

The previous prime is 222201099983. The next prime is 222201100007. The reversal of 222201100000 is 1102222.

222201100000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a self number, because there is not a number n which added to its sum of digits gives 222201100000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222201100007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 999000 + ... + 1201000.

It is an arithmetic number, because the mean of its divisors is an integer number (4142354013).

Almost surely, 2^222201100000 is an apocalyptic number.

222201100000 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 222201100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298249488936).

222201100000 is an abundant number, since it is smaller than the sum of its proper divisors (374297877872).

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

222201100000 is an equidigital number, since it uses as much as digits as its factorization.

222201100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202047 (or 202019 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 222201100000 its reverse (1102222), we get a palindrome (222202202222).

The spelling of 222201100000 in words is "two hundred twenty-two billion, two hundred one million, one hundred thousand".