121100222120 has 32 divisors (see below), whose sum is σ = 272488320000. Its totient is φ = 48437809728.

The previous prime is 121100222077. The next prime is 121100222147. The reversal of 121100222120 is 21222001121.

121100222120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 121100222095 and 121100222104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 981737 + ... + 1098183.

It is an arithmetic number, because the mean of its divisors is an integer number (8515260000).

Almost surely, 2^121100222120 is an apocalyptic number.

121100222120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121100222120 is an abundant number, since it is smaller than the sum of its proper divisors (151388097880).

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

121100222120 is a wasteful number, since it uses less digits than its factorization.

121100222120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142457 (or 142453 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121100222120 its reverse (21222001121), we get a palindrome (142322223241).

The spelling of 121100222120 in words is "one hundred twenty-one billion, one hundred million, two hundred twenty-two thousand, one hundred twenty".