20221203320 has 32 divisors (see below), whose sum is σ = 45504227520. Its totient is φ = 8087322240.

The previous prime is 20221203307. The next prime is 20221203347. The reversal of 20221203320 is 2330212202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280610 + ... + 345230.

It is an arithmetic number, because the mean of its divisors is an integer number (1422007110).

Almost surely, 2^20221203320 is an apocalyptic number.

20221203320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20221203320 is an abundant number, since it is smaller than the sum of its proper divisors (25283024200).

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

20221203320 is a wasteful number, since it uses less digits than its factorization.

20221203320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72455 (or 72451 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20221203320 its reverse (2330212202), we get a palindrome (22551415522).

The spelling of 20221203320 in words is "twenty billion, two hundred twenty-one million, two hundred three thousand, three hundred twenty".