12021022013 has 64 divisors (see below), whose sum is σ = 17095421952. Its totient is φ = 8146068480.

The previous prime is 12021022009. The next prime is 12021022043. The reversal of 12021022013 is 31022012021.

It is a happy number.

12021022013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12021022013 - 2² = 12021022009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021022003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1538645 + ... + 1546437.

It is an arithmetic number, because the mean of its divisors is an integer number (267115968).

Almost surely, 2^12021022013 is an apocalyptic number.

12021022013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12021022013 is a deficient number, since it is larger than the sum of its proper divisors (5074399939).

12021022013 is a wasteful number, since it uses less digits than its factorization.

12021022013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7914.

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

Adding to 12021022013 its reverse (31022012021), we get a palindrome (43043034034).

The spelling of 12021022013 in words is "twelve billion, twenty-one million, twenty-two thousand, thirteen".