222000122100 has 288 divisors, whose sum is σ = 668044742400. Its totient is φ = 56875253760.

The previous prime is 222000122089. The next prime is 222000122117. The reversal of 222000122100 is 1221000222.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 370617601 + ... + 370618199.

It is an arithmetic number, because the mean of its divisors is an integer number (2319599800).

Almost surely, 2^222000122100 is an apocalyptic number.

222000122100 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 222000122100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334022371200).

222000122100 is an abundant number, since it is smaller than the sum of its proper divisors (446044620300).

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

222000122100 is a wasteful number, since it uses less digits than its factorization.

222000122100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019 (or 1012 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 222000122100 its reverse (1221000222), we get a palindrome (223221122322).

It can be divided in two parts, 222000122 and 100, that added together give a palindrome (222000222).

The spelling of 222000122100 in words is "two hundred twenty-two billion, one hundred twenty-two thousand, one hundred".