222120100120 has 32 divisors (see below), whose sum is σ = 515891848320. Its totient is φ = 85981973760.

The previous prime is 222120100117. The next prime is 222120100121. The reversal of 222120100120 is 21001021222.

It is a happy number.

222120100120 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 222120100120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222120100121) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 89563317 + ... + 89565796.

It is an arithmetic number, because the mean of its divisors is an integer number (16121620260).

Almost surely, 2^222120100120 is an apocalyptic number.

222120100120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222120100120 is an abundant number, since it is smaller than the sum of its proper divisors (293771748200).

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

222120100120 is a wasteful number, since it uses less digits than its factorization.

222120100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179129155 (or 179129151 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 222120100120 its reverse (21001021222), we get a palindrome (243121121342).

The spelling of 222120100120 in words is "two hundred twenty-two billion, one hundred twenty million, one hundred thousand, one hundred twenty".