12221013301223 has 4 divisors (see below), whose sum is σ = 12752361705648. Its totient is φ = 11689664896800.

The previous prime is 12221013301157. The next prime is 12221013301229. The reversal of 12221013301223 is 32210331012221.

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

It is a cyclic number.

It is not a de Polignac number, because 12221013301223 - 2²⁶ = 12220946192359 is a prime.

It is a super-2 number, since 2×12221013301223² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 531348404401 = 12221013301223 / (1 + 2 + 2 + 2 + 1 + 0 + 1 + 3 + 3 + 0 + 1 + 2 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221013301229) 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, 265674202178 + ... + 265674202223.

It is an arithmetic number, because the mean of its divisors is an integer number (3188090426412).

Almost surely, 2^{12221013301223} is an apocalyptic number.

12221013301223 is a deficient number, since it is larger than the sum of its proper divisors (531348404425).

12221013301223 is an equidigital number, since it uses as much as digits as its factorization.

12221013301223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531348404424.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 12221013301223 its reverse (32210331012221), we get a palindrome (44431344313444).

The spelling of 12221013301223 in words is "twelve trillion, two hundred twenty-one billion, thirteen million, three hundred one thousand, two hundred twenty-three".