12012220113 has 4 divisors (see below), whose sum is σ = 16016293488. Its totient is φ = 8008146740.

The previous prime is 12012220093. The next prime is 12012220127. The reversal of 12012220113 is 31102221021.

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 12012220113 - 2⁶ = 12012220049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12012220092 and 12012220101.

It is not an unprimeable number, because it can be changed into a prime (12012220313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2002036683 + ... + 2002036688.

It is an arithmetic number, because the mean of its divisors is an integer number (4004073372).

Almost surely, 2^12012220113 is an apocalyptic number.

It is an amenable number.

12012220113 is a deficient number, since it is larger than the sum of its proper divisors (4004073375).

12012220113 is an equidigital number, since it uses as much as digits as its factorization.

12012220113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4004073374.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12012220113 its reverse (31102221021), we get a palindrome (43114441134).

The spelling of 12012220113 in words is "twelve billion, twelve million, two hundred twenty thousand, one hundred thirteen".