12100020202221 has 16 divisors (see below), whose sum is σ = 18936453753984. Its totient is φ = 6727424359104.

The previous prime is 12100020202183. The next prime is 12100020202297. The reversal of 12100020202221 is 12220202000121.

12100020202221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12100020202221 - 2³¹ = 12097872718573 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12100020202221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100020202421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7786370010 + ... + 7786371563.

It is an arithmetic number, because the mean of its divisors is an integer number (1183528359624).

Almost surely, 2^{12100020202221} is an apocalyptic number.

It is an amenable number.

12100020202221 is a deficient number, since it is larger than the sum of its proper divisors (6836433551763).

12100020202221 is a wasteful number, since it uses less digits than its factorization.

12100020202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15572741620.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12100020202221 its reverse (12220202000121), we get a palindrome (24320222202342).

The spelling of 12100020202221 in words is "twelve trillion, one hundred billion, twenty million, two hundred two thousand, two hundred twenty-one".