12102021110 has 16 divisors (see below), whose sum is σ = 21796535376. Its totient is φ = 4837942368.

The previous prime is 12102021073. The next prime is 12102021131. The reversal of 12102021110 is 1112020121.

It is a junction number, because it is equal to n+sod(n) for n = 12102021091 and 12102021100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340484 + ... + 374343.

It is an arithmetic number, because the mean of its divisors is an integer number (1362283461).

Almost surely, 2^12102021110 is an apocalyptic number.

12102021110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12102021110 is a deficient number, since it is larger than the sum of its proper divisors (9694514266).

12102021110 is a wasteful number, since it uses less digits than its factorization.

12102021110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716527.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12102021110 its reverse (1112020121), we get a palindrome (13214041231).

The spelling of 12102021110 in words is "twelve billion, one hundred two million, twenty-one thousand, one hundred ten".