12221323013 has 8 divisors (see below), whose sum is σ = 12978398400. Its totient is φ = 11475632448.

The previous prime is 12221322991. The next prime is 12221323141. The reversal of 12221323013 is 31032312221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12221323013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221353013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2843993 + ... + 2848286.

It is an arithmetic number, because the mean of its divisors is an integer number (1622299800).

Almost surely, 2^12221323013 is an apocalyptic number.

It is an amenable number.

12221323013 is a deficient number, since it is larger than the sum of its proper divisors (757075387).

12221323013 is a wasteful number, since it uses less digits than its factorization.

12221323013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5692411.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12221323013 its reverse (31032312221), we get a palindrome (43253635234).

The spelling of 12221323013 in words is "twelve billion, two hundred twenty-one million, three hundred twenty-three thousand, thirteen".