120121100112 has 40 divisors (see below), whose sum is σ = 334183062304. Its totient is φ = 36960338304.

The previous prime is 120121100111. The next prime is 120121100131. The reversal of 120121100112 is 211001121021.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120121100111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96250258 + ... + 96251505.

Almost surely, 2^120121100112 is an apocalyptic number.

120121100112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120121100112 is an abundant number, since it is smaller than the sum of its proper divisors (214061962192).

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

120121100112 is a wasteful number, since it uses less digits than its factorization.

120121100112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192501787 (or 192501781 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 120121100112 its reverse (211001121021), we get a palindrome (331122221133).

The spelling of 120121100112 in words is "one hundred twenty billion, one hundred twenty-one million, one hundred thousand, one hundred twelve".