12221221112013 has 8 divisors (see below), whose sum is σ = 16324216352928. Its totient is φ = 8132853306224.

The previous prime is 12221221112011. The next prime is 12221221112039. The reversal of 12221221112013 is 31021112212221.

12221221112013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12221221112013 - 2¹ = 12221221112011 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221221112011) 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, 3656856831 + ... + 3656860172.

It is an arithmetic number, because the mean of its divisors is an integer number (2040527044116).

Almost surely, 2^{12221221112013} is an apocalyptic number.

It is an amenable number.

12221221112013 is a deficient number, since it is larger than the sum of its proper divisors (4102995240915).

12221221112013 is an equidigital number, since it uses as much as digits as its factorization.

12221221112013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7313717563.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 12221221112013 its reverse (31021112212221), we get a palindrome (43242333324234).

The spelling of 12221221112013 in words is "twelve trillion, two hundred twenty-one billion, two hundred twenty-one million, one hundred twelve thousand, thirteen".