12102021111012 has 96 divisors (see below), whose sum is σ = 32352489759744. Its totient is φ = 3449107305600.

The previous prime is 12102021111007. The next prime is 12102021111053. The reversal of 12102021111012 is 21011112020121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12102021110982 and 12102021111000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123984187 + ... + 124081757.

It is an arithmetic number, because the mean of its divisors is an integer number (337005101664).

Almost surely, 2^{12102021111012} is an apocalyptic number.

12102021111012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12102021111012 is an abundant number, since it is smaller than the sum of its proper divisors (20250468648732).

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

12102021111012 is a wasteful number, since it uses less digits than its factorization.

12102021111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101249 (or 101247 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12102021111012 its reverse (21011112020121), we get a palindrome (33113133131133).

The spelling of 12102021111012 in words is "twelve trillion, one hundred two billion, twenty-one million, one hundred eleven thousand, twelve".