20221231133204 has 24 divisors (see below), whose sum is σ = 35723902950120. Its totient is φ = 10014464553984.

The previous prime is 20221231133203. The next prime is 20221231133239. The reversal of 20221231133204 is 40233113212202.

It can be written as a sum of positive squares in 4 ways, for example, as 10690414944400 + 9530816188804 = 3269620^2 + 3087202^2 .

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6565349 + ... + 9140364.

It is an arithmetic number, because the mean of its divisors is an integer number (1488495956255).

Almost surely, 2^{20221231133204} is an apocalyptic number.

It is an amenable number.

20221231133204 is a deficient number, since it is larger than the sum of its proper divisors (15502671816916).

20221231133204 is a wasteful number, since it uses less digits than its factorization.

20221231133204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15708779 (or 15708777 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 20221231133204 its reverse (40233113212202), we get a palindrome (60454344345406).

The spelling of 20221231133204 in words is "twenty trillion, two hundred twenty-one billion, two hundred thirty-one million, one hundred thirty-three thousand, two hundred four".