12111110210 has 32 divisors (see below), whose sum is σ = 22805161200. Its totient is φ = 4624829440.

The previous prime is 12111110203. The next prime is 12111110237. The reversal of 12111110210 is 1201111121.

It can be written as a sum of positive squares in 8 ways, for example, as 7985745769 + 4125364441 = 89363^2 + 64229^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12111110191 and 12111110200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208811 + ... + 260430.

Almost surely, 2^12111110210 is an apocalyptic number.

12111110210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12111110210 is a deficient number, since it is larger than the sum of its proper divisors (10694050990).

12111110210 is a wasteful number, since it uses less digits than its factorization.

12111110210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469366.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 12111110210 its reverse (1201111121), we get a palindrome (13312221331).

The spelling of 12111110210 in words is "twelve billion, one hundred eleven million, one hundred ten thousand, two hundred ten".