12213064923197 has 4 divisors (see below), whose sum is σ = 12213202002300. Its totient is φ = 12212927844096.

The previous prime is 12213064923119. The next prime is 12213064923239. The reversal of 12213064923197 is 79132946031221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5596162715641 + 6616902207556 = 2365621^2 + 2572334^2 .

It is a cyclic number.

It is not a de Polignac number, because 12213064923197 - 2¹⁸ = 12213064661053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12213054923197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68405822 + ... + 68584127.

It is an arithmetic number, because the mean of its divisors is an integer number (3053300500575).

Almost surely, 2^{12213064923197} is an apocalyptic number.

It is an amenable number.

12213064923197 is a deficient number, since it is larger than the sum of its proper divisors (137079103).

12213064923197 is an equidigital number, since it uses as much as digits as its factorization.

12213064923197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137079102.

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 12213064923197 in words is "twelve trillion, two hundred thirteen billion, sixty-four million, nine hundred twenty-three thousand, one hundred ninety-seven".