12110200721 has 2 divisors, whose sum is σ = 12110200722. Its totient is φ = 12110200720.

The previous prime is 12110200703. The next prime is 12110200727. The reversal of 12110200721 is 12700201121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9698310400 + 2411890321 = 98480^2 + 49111^2 .

It is a cyclic number.

It is not a de Polignac number, because 12110200721 - 2²⁶ = 12043091857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12110200721.

It is not a weakly prime, because it can be changed into another prime (12110200727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055100360 + 6055100361.

It is an arithmetic number, because the mean of its divisors is an integer number (6055100361).

Almost surely, 2^12110200721 is an apocalyptic number.

It is an amenable number.

12110200721 is a deficient number, since it is larger than the sum of its proper divisors (1).

12110200721 is an equidigital number, since it uses as much as digits as its factorization.

12110200721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 17.

Adding to 12110200721 its reverse (12700201121), we get a palindrome (24810401842).

The spelling of 12110200721 in words is "twelve billion, one hundred ten million, two hundred thousand, seven hundred twenty-one".