12011022101213 has 4 divisors (see below), whose sum is σ = 12011143802268. Its totient is φ = 12010900400160.

The previous prime is 12011022101179. The next prime is 12011022101227. The reversal of 12011022101213 is 31210122011021.

It is a happy number.

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 8553735554329 + 3457286546884 = 2924677^2 + 1859378^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12011022101213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12011022101191 and 12011022101200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011022101293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60702368 + ... + 60899913.

It is an arithmetic number, because the mean of its divisors is an integer number (3002785950567).

Almost surely, 2^{12011022101213} is an apocalyptic number.

It is an amenable number.

12011022101213 is a deficient number, since it is larger than the sum of its proper divisors (121701055).

12011022101213 is an equidigital number, since it uses as much as digits as its factorization.

12011022101213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121701054.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 12011022101213 its reverse (31210122011021), we get a palindrome (43221144112234).

The spelling of 12011022101213 in words is "twelve trillion, eleven billion, twenty-two million, one hundred one thousand, two hundred thirteen".