12111331210 has 64 divisors (see below), whose sum is σ = 24269414400. Its totient is φ = 4314772800.

The previous prime is 12111331187. The next prime is 12111331213. The reversal of 12111331210 is 1213311121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12111331213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1133071 + ... + 1143709.

It is an arithmetic number, because the mean of its divisors is an integer number (379209600).

Almost surely, 2^12111331210 is an apocalyptic number.

12111331210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12111331210 is an abundant number, since it is smaller than the sum of its proper divisors (12158083190).

12111331210 is a wasteful number, since it uses less digits than its factorization.

12111331210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10867.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 12111331210 its reverse (1213311121), we get a palindrome (13324642331).

The spelling of 12111331210 in words is "twelve billion, one hundred eleven million, three hundred thirty-one thousand, two hundred ten".