23221232020 has 96 divisors (see below), whose sum is σ = 56501722368. Its totient is φ = 7852127232.

The previous prime is 23221232017. The next prime is 23221232057. The reversal of 23221232020 is 2023212232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3487014 + ... + 3493666.

It is an arithmetic number, because the mean of its divisors is an integer number (588559608).

Almost surely, 2^23221232020 is an apocalyptic number.

23221232020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23221232020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28250861184).

23221232020 is an abundant number, since it is smaller than the sum of its proper divisors (33280490348).

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

23221232020 is a wasteful number, since it uses less digits than its factorization.

23221232020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7009 (or 7007 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 23221232020 its reverse (2023212232), we get a palindrome (25244444252).

The spelling of 23221232020 in words is "twenty-three billion, two hundred twenty-one million, two hundred thirty-two thousand, twenty".