12010001213 has 16 divisors (see below), whose sum is σ = 14451515520. Its totient is φ = 9750191616.

The previous prime is 12010001209. The next prime is 12010001221. The reversal of 12010001213 is 31210001021.

It is a cyclic number.

It is not a de Polignac number, because 12010001213 - 2² = 12010001209 is a prime.

It is a super-2 number, since 2×12010001213² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12010001194 and 12010001203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010001413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 776645 + ... + 791957.

It is an arithmetic number, because the mean of its divisors is an integer number (903219720).

Almost surely, 2^12010001213 is an apocalyptic number.

It is an amenable number.

12010001213 is a deficient number, since it is larger than the sum of its proper divisors (2441514307).

12010001213 is a wasteful number, since it uses less digits than its factorization.

12010001213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21236.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 12010001213 its reverse (31210001021), we get a palindrome (43220002234).

The spelling of 12010001213 in words is "twelve billion, ten million, one thousand, two hundred thirteen".