12100021223213 has 96 divisors (see below), whose sum is σ = 15590552630400. Its totient is φ = 9285393062400.

The previous prime is 12100021223177. The next prime is 12100021223281. The reversal of 12100021223213 is 31232212000121.

It is not a de Polignac number, because 12100021223213 - 2¹⁰ = 12100021222189 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100021223413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7080175403 + ... + 7080177111.

It is an arithmetic number, because the mean of its divisors is an integer number (162401589900).

Almost surely, 2^{12100021223213} is an apocalyptic number.

It is an amenable number.

12100021223213 is a deficient number, since it is larger than the sum of its proper divisors (3490531407187).

12100021223213 is a wasteful number, since it uses less digits than its factorization.

12100021223213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2571 (or 2564 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12100021223213 its reverse (31232212000121), we get a palindrome (43332233223334).

The spelling of 12100021223213 in words is "twelve trillion, one hundred billion, twenty-one million, two hundred twenty-three thousand, two hundred thirteen".