21011232322020 has 24 divisors (see below), whose sum is σ = 58831450501824. Its totient is φ = 5602995285856.

The previous prime is 21011232321971. The next prime is 21011232322021. The reversal of 21011232322020 is 2022323211012.

It is not an unprimeable number, because it can be changed into a prime (21011232322021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175093602624 + ... + 175093602743.

It is an arithmetic number, because the mean of its divisors is an integer number (2451310437576).

Almost surely, 2^{21011232322020} is an apocalyptic number.

21011232322020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21011232322020 is an abundant number, since it is smaller than the sum of its proper divisors (37820218179804).

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

21011232322020 is a wasteful number, since it uses less digits than its factorization.

21011232322020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350187205379 (or 350187205377 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21011232322020 its reverse (2022323211012), we get a palindrome (23033555533032).

The spelling of 21011232322020 in words is "twenty-one trillion, eleven billion, two hundred thirty-two million, three hundred twenty-two thousand, twenty".