222101100120 has 64 divisors (see below), whose sum is σ = 671549829120. Its totient is φ = 58760601984.

The previous prime is 222101100119. The next prime is 222101100187. The reversal of 222101100120 is 21001101222.

222101100120 is digitally balanced in base 2, 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 (12).

It is a junction number, because it is equal to n+sod(n) for n = 222101100096 and 222101100105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7271542 + ... + 7302021.

It is an arithmetic number, because the mean of its divisors is an integer number (10492966080).

Almost surely, 2^222101100120 is an apocalyptic number.

222101100120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222101100120 is an abundant number, since it is smaller than the sum of its proper divisors (449448729000).

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

222101100120 is a wasteful number, since it uses less digits than its factorization.

222101100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14573704 (or 14573700 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 222101100120 its reverse (21001101222), we get a palindrome (243102201342).

The spelling of 222101100120 in words is "two hundred twenty-two billion, one hundred one million, one hundred thousand, one hundred twenty".