121000100120112 has 40 divisors (see below), whose sum is σ = 312736894629120. Its totient is φ = 40313585719360.

The previous prime is 121000100120111. The next prime is 121000100120117. The reversal of 121000100120112 is 211021001000121.

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

It is not an unprimeable number, because it can be changed into a prime (121000100120111) 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, 618056964 + ... + 618252707.

It is an arithmetic number, because the mean of its divisors is an integer number (7818422365728).

Almost surely, 2^{121000100120112} is an apocalyptic number.

121000100120112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121000100120112 is an abundant number, since it is smaller than the sum of its proper divisors (191736794509008).

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

121000100120112 is a wasteful number, since it uses less digits than its factorization.

121000100120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236311721 (or 1236311715 counting only the distinct ones).

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

Adding to 121000100120112 its reverse (211021001000121), we get a palindrome (332021101120233).

The spelling of 121000100120112 in words is "one hundred twenty-one trillion, one hundred million, one hundred twenty thousand, one hundred twelve".