15421402214213 has 2 divisors, whose sum is σ = 15421402214214. Its totient is φ = 15421402214212.

The previous prime is 15421402214203. The next prime is 15421402214233. The reversal of 15421402214213 is 31241220412451.

15421402214213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14366358928804 + 1055043285409 = 3790298^2 + 1027153^2 .

It is a cyclic number.

It is not a de Polignac number, because 15421402214213 - 2²⁴ = 15421385436997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15421402214213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15421402214203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7710701107106 + 7710701107107.

It is an arithmetic number, because the mean of its divisors is an integer number (7710701107107).

Almost surely, 2^{15421402214213} is an apocalyptic number.

It is an amenable number.

15421402214213 is a deficient number, since it is larger than the sum of its proper divisors (1).

15421402214213 is an equidigital number, since it uses as much as digits as its factorization.

15421402214213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15360, while the sum is 32.

Adding to 15421402214213 its reverse (31241220412451), we get a palindrome (46662622626664).

The spelling of 15421402214213 in words is "fifteen trillion, four hundred twenty-one billion, four hundred two million, two hundred fourteen thousand, two hundred thirteen".