12102111210 has 32 divisors (see below), whose sum is σ = 33194362752. Its totient is φ = 2766196800.

The previous prime is 12102111193. The next prime is 12102111247. The reversal of 12102111210 is 1211120121.

It is a super-2 number, since 2×12102111210² (a number of 21 digits) contains 22 as substring.

It is a Curzon 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, 28814341 + ... + 28814760.

It is an arithmetic number, because the mean of its divisors is an integer number (1037323836).

Almost surely, 2^12102111210 is an apocalyptic number.

12102111210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12102111210 is an abundant number, since it is smaller than the sum of its proper divisors (21092251542).

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

12102111210 is a wasteful number, since it uses less digits than its factorization.

12102111210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57629118.

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

Adding to 12102111210 its reverse (1211120121), we get a palindrome (13313231331).

It can be divided in two parts, 121021 and 11210, that added together give a palindrome (132231).

The spelling of 12102111210 in words is "twelve billion, one hundred two million, one hundred eleven thousand, two hundred ten".