12021223111213 has 8 divisors (see below), whose sum is σ = 12075720338432. Its totient is φ = 11966805735696.

The previous prime is 12021223111207. The next prime is 12021223111229. The reversal of 12021223111213 is 31211132212021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12021223111213 - 2⁴¹ = 9822199855661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021253111213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19661145 + ... + 20263342.

It is an arithmetic number, because the mean of its divisors is an integer number (1509465042304).

Almost surely, 2^{12021223111213} is an apocalyptic number.

It is an amenable number.

12021223111213 is a deficient number, since it is larger than the sum of its proper divisors (54497227219).

12021223111213 is a wasteful number, since it uses less digits than its factorization.

12021223111213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39925851.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 12021223111213 its reverse (31211132212021), we get a palindrome (43232355323234).

The spelling of 12021223111213 in words is "twelve trillion, twenty-one billion, two hundred twenty-three million, one hundred eleven thousand, two hundred thirteen".