121001310012 has 48 divisors (see below), whose sum is σ = 316327761792. Its totient is φ = 35676060480.

The previous prime is 121001309993. The next prime is 121001310041. The reversal of 121001310012 is 210013100121.

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

It is a self number, because there is not a number n which added to its sum of digits gives 121001310012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12382638 + ... + 12392405.

It is an arithmetic number, because the mean of its divisors is an integer number (6590161704).

Almost surely, 2^121001310012 is an apocalyptic number.

121001310012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121001310012 is an abundant number, since it is smaller than the sum of its proper divisors (195326451780).

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

121001310012 is a wasteful number, since it uses less digits than its factorization.

121001310012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24775098 (or 24775096 counting only the distinct ones).

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

Adding to 121001310012 its reverse (210013100121), we get a palindrome (331014410133).

The spelling of 121001310012 in words is "one hundred twenty-one billion, one million, three hundred ten thousand, twelve".