12212320032338 has 4 divisors (see below), whose sum is σ = 18318480048510. Its totient is φ = 6106160016168.

The previous prime is 12212320032331. The next prime is 12212320032383. The reversal of 12212320032338 is 83323002321221.

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

It can be written as a sum of positive squares in only one way, i.e., 9390467685769 + 2821852346569 = 3064387^2 + 1679837^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12212320032331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3053080008083 + ... + 3053080008086.

Almost surely, 2^{12212320032338} is an apocalyptic number.

12212320032338 is a deficient number, since it is larger than the sum of its proper divisors (6106160016172).

12212320032338 is an equidigital number, since it uses as much as digits as its factorization.

12212320032338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6106160016171.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 12212320032338 its reverse (83323002321221), we get a palindrome (95535322353559).

The spelling of 12212320032338 in words is "twelve trillion, two hundred twelve billion, three hundred twenty million, thirty-two thousand, three hundred thirty-eight".