20220021200 has 60 divisors (see below), whose sum is σ = 48595848000. Its totient is φ = 8085137280.

The previous prime is 20220021167. The next prime is 20220021271. The reversal of 20220021200 is 212002202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1392377 + ... + 1406823.

It is an arithmetic number, because the mean of its divisors is an integer number (809930800).

Almost surely, 2^20220021200 is an apocalyptic number.

20220021200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20220021200 is an abundant number, since it is smaller than the sum of its proper divisors (28375826800).

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

20220021200 is a wasteful number, since it uses less digits than its factorization.

20220021200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17964 (or 17953 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 20220021200 its reverse (212002202), we get a palindrome (20432023402).

It can be divided in two parts, 2022002 and 1200, that added together give a palindrome (2023202).

The spelling of 20220021200 in words is "twenty billion, two hundred twenty million, twenty-one thousand, two hundred".