12111100100210 has 16 divisors (see below), whose sum is σ = 21800252312856. Its totient is φ = 4844379566208.

The previous prime is 12111100100153. The next prime is 12111100100219. The reversal of 12111100100210 is 1200100111121.

It can be written as a sum of positive squares in 4 ways, for example, as 9268547936041 + 2842552164169 = 3044429^2 + 1685987^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12111100100191 and 12111100100200.

It is not an unprimeable number, because it can be changed into a prime (12111100100219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6713597 + ... + 8324336.

Almost surely, 2^{12111100100210} is an apocalyptic number.

12111100100210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12111100100210 is a deficient number, since it is larger than the sum of its proper divisors (9689152212646).

12111100100210 is a wasteful number, since it uses less digits than its factorization.

12111100100210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15118477.

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

Adding to 12111100100210 its reverse (1200100111121), we get a palindrome (13311200211331).

The spelling of 12111100100210 in words is "twelve trillion, one hundred eleven billion, one hundred million, one hundred thousand, two hundred ten".