20220133312 has 28 divisors (see below), whose sum is σ = 40607763336. Its totient is φ = 9988256000.

The previous prime is 20220133261. The next prime is 20220133321. The reversal of 20220133312 is 21333102202.

It is a self number, because there is not a number n which added to its sum of digits gives 20220133312.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1897939 + ... + 1908562.

It is an arithmetic number, because the mean of its divisors is an integer number (1450277262).

Almost surely, 2^20220133312 is an apocalyptic number.

It is an amenable number.

20220133312 is an abundant number, since it is smaller than the sum of its proper divisors (20387630024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20220133312 is an equidigital number, since it uses as much as digits as its factorization.

20220133312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3806596 (or 3806586 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20220133312 its reverse (21333102202), we get a palindrome (41553235514).

The spelling of 20220133312 in words is "twenty billion, two hundred twenty million, one hundred thirty-three thousand, three hundred twelve".