12001223220113 has 4 divisors (see below), whose sum is σ = 12015734978160. Its totient is φ = 11986711462068.

The previous prime is 12001223220073. The next prime is 12001223220191. The reversal of 12001223220113 is 31102232210021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12001223220113 - 2⁸ = 12001223219857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12001223220313) 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, 7255877783 + ... + 7255879436.

It is an arithmetic number, because the mean of its divisors is an integer number (3003933744540).

Almost surely, 2^{12001223220113} is an apocalyptic number.

It is an amenable number.

12001223220113 is a deficient number, since it is larger than the sum of its proper divisors (14511758047).

12001223220113 is an equidigital number, since it uses as much as digits as its factorization.

12001223220113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14511758046.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12001223220113 its reverse (31102232210021), we get a palindrome (43103455430134).

The spelling of 12001223220113 in words is "twelve trillion, one billion, two hundred twenty-three million, two hundred twenty thousand, one hundred thirteen".