12213123233021 has 8 divisors (see below), whose sum is σ = 12634370878080. Its totient is φ = 11791882618992.

The previous prime is 12213123232991. The next prime is 12213123233041. The reversal of 12213123233021 is 12033232131221.

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 12213123233021 - 2³⁴ = 12195943363837 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 (12213123233041) 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, 1905656 + ... + 5296958.

It is an arithmetic number, because the mean of its divisors is an integer number (1579296359760).

Almost surely, 2^{12213123233021} is an apocalyptic number.

It is an amenable number.

12213123233021 is a deficient number, since it is larger than the sum of its proper divisors (421247645059).

12213123233021 is a wasteful number, since it uses less digits than its factorization.

12213123233021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3515515.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 12213123233021 its reverse (12033232131221), we get a palindrome (24246355364242).

The spelling of 12213123233021 in words is "twelve trillion, two hundred thirteen billion, one hundred twenty-three million, two hundred thirty-three thousand, twenty-one".