12002011213 has 4 divisors (see below), whose sum is σ = 12013767388. Its totient is φ = 11990255040.

The previous prime is 12002011199. The next prime is 12002011223. The reversal of 12002011213 is 31211020021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10434009609 + 1568001604 = 102147^2 + 39598^2 .

It is a cyclic number.

It is not a de Polignac number, because 12002011213 - 2²¹ = 11999914061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12002011193 and 12002011202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002011223) 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, 5876556 + ... + 5878597.

It is an arithmetic number, because the mean of its divisors is an integer number (3003441847).

Almost surely, 2^12002011213 is an apocalyptic number.

It is an amenable number.

12002011213 is a deficient number, since it is larger than the sum of its proper divisors (11756175).

12002011213 is a wasteful number, since it uses less digits than its factorization.

12002011213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11756174.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12002011213 its reverse (31211020021), we get a palindrome (43213031234).

The spelling of 12002011213 in words is "twelve billion, two million, eleven thousand, two hundred thirteen".