12102213013021 has 2 divisors, whose sum is σ = 12102213013022. Its totient is φ = 12102213013020.

The previous prime is 12102213012997. The next prime is 12102213013069. The reversal of 12102213013021 is 12031031220121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10965833560900 + 1136379452121 = 3311470^2 + 1066011^2 .

It is an emirp because it is prime and its reverse (12031031220121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12102213013021 - 2²⁷ = 12102078795293 is a prime.

It is a super-2 number, since 2×12102213013021² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12102213013021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12102213010021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051106506510 + 6051106506511.

It is an arithmetic number, because the mean of its divisors is an integer number (6051106506511).

Almost surely, 2^{12102213013021} is an apocalyptic number.

It is an amenable number.

12102213013021 is a deficient number, since it is larger than the sum of its proper divisors (1).

12102213013021 is an equidigital number, since it uses as much as digits as its factorization.

12102213013021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 12102213013021 its reverse (12031031220121), we get a palindrome (24133244233142).

The spelling of 12102213013021 in words is "twelve trillion, one hundred two billion, two hundred thirteen million, thirteen thousand, twenty-one".