20221330100 has 36 divisors (see below), whose sum is σ = 43920524844. Its totient is φ = 8081114880.

The previous prime is 20221330097. The next prime is 20221330109. The reversal of 20221330100 is 103312202.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 3753767824 + 16467562276 = 61268^2 + 128326^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221330109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17534 + ... + 201866.

It is an arithmetic number, because the mean of its divisors is an integer number (1220014579).

Almost surely, 2^20221330100 is an apocalyptic number.

20221330100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20221330100 is an abundant number, since it is smaller than the sum of its proper divisors (23699194744).

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

20221330100 is a wasteful number, since it uses less digits than its factorization.

20221330100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185444 (or 185437 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20221330100 its reverse (103312202), we get a palindrome (20324642302).

The spelling of 20221330100 in words is "twenty billion, two hundred twenty-one million, three hundred thirty thousand, one hundred".