21233102322020 has 24 divisors (see below), whose sum is σ = 44589629830200. Its totient is φ = 8493219032832.

The previous prime is 21233102321953. The next prime is 21233102322041. The reversal of 21233102322020 is 2022320133212.

It can be written as a sum of positive squares in 4 ways, for example, as 777454846756 + 20455647475264 = 881734^2 + 4522792^2 .

It is a super-2 number, since 2×21233102322020² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8222816 + ... + 10491944.

It is an arithmetic number, because the mean of its divisors is an integer number (1857901242925).

Almost surely, 2^{21233102322020} is an apocalyptic number.

21233102322020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21233102322020 is an abundant number, since it is smaller than the sum of its proper divisors (23356527508180).

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

21233102322020 is a wasteful number, since it uses less digits than its factorization.

21233102322020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2737007 (or 2737005 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 21233102322020 its reverse (2022320133212), we get a palindrome (23255422455232).

The spelling of 21233102322020 in words is "twenty-one trillion, two hundred thirty-three billion, one hundred two million, three hundred twenty-two thousand, twenty".