12212021133231 has 8 divisors (see below), whose sum is σ = 16282714877184. Its totient is φ = 8141337405720.

The previous prime is 12212021133181. The next prime is 12212021133233. The reversal of 12212021133231 is 13233112021221.

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

It is a de Polignac number, because none of the positive numbers 2^k-12212021133231 is a prime.

It is a super-2 number, since 2×12212021133231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212021133233) 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, 1069066 + ... + 5056376.

It is an arithmetic number, because the mean of its divisors is an integer number (2035339359648).

Almost surely, 2^{12212021133231} is an apocalyptic number.

12212021133231 is a deficient number, since it is larger than the sum of its proper divisors (4070693743953).

12212021133231 is a wasteful number, since it uses less digits than its factorization.

12212021133231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5008221.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 12212021133231 its reverse (13233112021221), we get a palindrome (25445133154452).

The spelling of 12212021133231 in words is "twelve trillion, two hundred twelve billion, twenty-one million, one hundred thirty-three thousand, two hundred thirty-one".