12121203110 has 16 divisors (see below), whose sum is σ = 21819629232. Its totient is φ = 4848156000.

The previous prime is 12121203047. The next prime is 12121203161. The reversal of 12121203110 is 1130212121.

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, 165785 + ... + 227435.

It is an arithmetic number, because the mean of its divisors is an integer number (1363726827).

Almost surely, 2^12121203110 is an apocalyptic number.

12121203110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121203110 is a deficient number, since it is larger than the sum of its proper divisors (9698426122).

12121203110 is a wasteful number, since it uses less digits than its factorization.

12121203110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81319.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12121203110 its reverse (1130212121), we get a palindrome (13251415231).

The spelling of 12121203110 in words is "twelve billion, one hundred twenty-one million, two hundred three thousand, one hundred ten".