20221231133213 has 8 divisors (see below), whose sum is σ = 22059797859840. Its totient is φ = 18382709904480.

The previous prime is 20221231133203. The next prime is 20221231133239. The reversal of 20221231133213 is 31233113212202.

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 20221231133213 - 2¹⁰ = 20221231132189 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 (20221231133203) 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, 10441853 + ... + 12225986.

It is an arithmetic number, because the mean of its divisors is an integer number (2757474732480).

Almost surely, 2^{20221231133213} is an apocalyptic number.

It is an amenable number.

20221231133213 is a deficient number, since it is larger than the sum of its proper divisors (1838566726627).

20221231133213 is a wasteful number, since it uses less digits than its factorization.

20221231133213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22748947.

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

Adding to 20221231133213 its reverse (31233113212202), we get a palindrome (51454344345415).

The spelling of 20221231133213 in words is "twenty trillion, two hundred twenty-one billion, two hundred thirty-one million, one hundred thirty-three thousand, two hundred thirteen".