120100121112 has 32 divisors (see below), whose sum is σ = 300736969200. Its totient is φ = 39968484864.

The previous prime is 120100121111. The next prime is 120100121129. The reversal of 120100121112 is 211121001021.

It is a super-2 number, since 2×120100121112² (a number of 23 digits) contains 22 as substring.

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 (120100121111) 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, 4040437 + ... + 4070052.

Almost surely, 2^120100121112 is an apocalyptic number.

120100121112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120100121112 is an abundant number, since it is smaller than the sum of its proper divisors (180636848088).

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

120100121112 is a wasteful number, since it uses less digits than its factorization.

120100121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8111115 (or 8111111 counting only the distinct ones).

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

Adding to 120100121112 its reverse (211121001021), we get a palindrome (331221122133).

The spelling of 120100121112 in words is "one hundred twenty billion, one hundred million, one hundred twenty-one thousand, one hundred twelve".