12389688970201 has 3 divisors (see below), whose sum is σ = 12389692490101. Its totient is φ = 12389685450302.

The previous prime is 12389688970157. The next prime is 12389688970223. The reversal of 12389688970201 is 10207988698321.

The square root of 12389688970201 is 3519899.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 12389688970201 - 2⁷ = 12389688970073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12389688970291) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1759950 + ... + 5279848.

Almost surely, 2^{12389688970201} is an apocalyptic number.

12389688970201 is the 3519899-th square number.

12389688970201 is the 1759950-th centered octagonal number.

It is an amenable number.

12389688970201 is a deficient number, since it is larger than the sum of its proper divisors (3519900).

12389688970201 is an frugal number, since it uses more digits than its factorization.

12389688970201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7039798 (or 3519899 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 64.

Multiplying 12389688970201 by its sum of digits (64), we get a square (792940094092864 = 28159192²).

The spelling of 12389688970201 in words is "twelve trillion, three hundred eighty-nine billion, six hundred eighty-eight million, nine hundred seventy thousand, two hundred one".