12110011010221 has 4 divisors (see below), whose sum is σ = 12111250656700. Its totient is φ = 12108771363744.

The previous prime is 12110011010219. The next prime is 12110011010231. The reversal of 12110011010221 is 12201011001121.

It is a happy number.

12110011010221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3265751365321 + 8844259644900 = 1807139^2 + 2973930^2 .

It is a cyclic number.

It is not a de Polignac number, because 12110011010221 - 2¹ = 12110011010219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110011010231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 619808586 + ... + 619828123.

It is an arithmetic number, because the mean of its divisors is an integer number (3027812664175).

Almost surely, 2^{12110011010221} is an apocalyptic number.

It is an amenable number.

12110011010221 is a deficient number, since it is larger than the sum of its proper divisors (1239646479).

12110011010221 is an equidigital number, since it uses as much as digits as its factorization.

12110011010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239646478.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12110011010221 its reverse (12201011001121), we get a palindrome (24311022011342).

It can be divided in two parts, 1211001 and 1010221, that added together give a palindrome (2221222).

The spelling of 12110011010221 in words is "twelve trillion, one hundred ten billion, eleven million, ten thousand, two hundred twenty-one".