12001020213 has 16 divisors (see below), whose sum is σ = 19693982336. Its totient is φ = 6330208320.

The previous prime is 12001020191. The next prime is 12001020259. The reversal of 12001020213 is 31202010021.

It is not a de Polignac number, because 12001020213 - 2⁵ = 12001020181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001020313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21979618 + ... + 21980163.

It is an arithmetic number, because the mean of its divisors is an integer number (1230873896).

Almost surely, 2^12001020213 is an apocalyptic number.

12001020213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12001020213 is a deficient number, since it is larger than the sum of its proper divisors (7692962123).

12001020213 is a wasteful number, since it uses less digits than its factorization.

12001020213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43959804.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 12001020213 its reverse (31202010021), we get a palindrome (43203030234).

The spelling of 12001020213 in words is "twelve billion, one million, twenty thousand, two hundred thirteen".