12111221413210 has 16 divisors (see below), whose sum is σ = 22211523045576. Its totient is φ = 4753083120448.

The previous prime is 12111221413171. The next prime is 12111221413217. The reversal of 12111221413210 is 1231412211121.

12111221413210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 12091385789289 + 19835623921 = 3477267^2 + 140839^2 .

It is not an unprimeable number, because it can be changed into a prime (12111221413217) 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, 11425680049 + ... + 11425681108.

Almost surely, 2^{12111221413210} is an apocalyptic number.

12111221413210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12111221413210 is a deficient number, since it is larger than the sum of its proper divisors (10100301632366).

12111221413210 is a wasteful number, since it uses less digits than its factorization.

12111221413210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22851361217.

The product of its (nonzero) digits is 192, while the sum is 22.

Adding to 12111221413210 its reverse (1231412211121), we get a palindrome (13342633624331).

The spelling of 12111221413210 in words is "twelve trillion, one hundred eleven billion, two hundred twenty-one million, four hundred thirteen thousand, two hundred ten".