12102021112 has 16 divisors (see below), whose sum is σ = 22693327200. Its totient is φ = 6050467200.

The previous prime is 12102021073. The next prime is 12102021131. The reversal of 12102021112 is 21112020121.

It is a junction number, because it is equal to n+sod(n) for n = 12102021092 and 12102021101.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 36112 + ... + 159712.

It is an arithmetic number, because the mean of its divisors is an integer number (1418332950).

Almost surely, 2^12102021112 is an apocalyptic number.

It is an amenable number.

12102021112 is a deficient number, since it is larger than the sum of its proper divisors (10591306088).

12102021112 is a wasteful number, since it uses less digits than its factorization.

12102021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135846 (or 135842 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12102021112 its reverse (21112020121), we get a palindrome (33214041233).

Subtracting 12102021112 from its reverse (21112020121), we obtain a palindrome (9009999009).

The spelling of 12102021112 in words is "twelve billion, one hundred two million, twenty-one thousand, one hundred twelve".