12012220013 has 4 divisors (see below), whose sum is σ = 12012879648. Its totient is φ = 12011560380.

The previous prime is 12012220001. The next prime is 12012220049. The reversal of 12012220013 is 31002221021.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31002221021 = 1733 ⋅17889337.

It is a cyclic number.

It is not a de Polignac number, because 12012220013 - 2²² = 12008025709 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12012220013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012220093) 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, 301703 + ... + 339188.

It is an arithmetic number, because the mean of its divisors is an integer number (3003219912).

Almost surely, 2^12012220013 is an apocalyptic number.

It is an amenable number.

12012220013 is a deficient number, since it is larger than the sum of its proper divisors (659635).

12012220013 is an equidigital number, since it uses as much as digits as its factorization.

12012220013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659634.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12012220013 its reverse (31002221021), we get a palindrome (43014441034).

The spelling of 12012220013 in words is "twelve billion, twelve million, two hundred twenty thousand, thirteen".