12321221232201 has 16 divisors (see below), whose sum is σ = 18775814728704. Its totient is φ = 7040465170704.

The previous prime is 12321221232191. The next prime is 12321221232263. The reversal of 12321221232201 is 10223212212321.

It is not a de Polignac number, because 12321221232201 - 2²⁷ = 12321087014473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12321221232301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9043245 + ... + 10316138.

It is an arithmetic number, because the mean of its divisors is an integer number (1173488420544).

Almost surely, 2^{12321221232201} is an apocalyptic number.

It is an amenable number.

12321221232201 is a deficient number, since it is larger than the sum of its proper divisors (6454593496503).

12321221232201 is a wasteful number, since it uses less digits than its factorization.

12321221232201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19389700.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 12321221232201 its reverse (10223212212321), we get a palindrome (22544433444522).

The spelling of 12321221232201 in words is "twelve trillion, three hundred twenty-one billion, two hundred twenty-one million, two hundred thirty-two thousand, two hundred one".