23221033020 has 60 divisors (see below), whose sum is σ = 72845245704. Its totient is φ = 6192275040.

The previous prime is 23221032953. The next prime is 23221033037. The reversal of 23221033020 is 2033012232.

It is a happy number.

23221033020 is a `hidden beast` number, since 2 + 322 + 10 + 330 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23221032984 and 23221033002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7165366 + ... + 7168605.

Almost surely, 2^23221033020 is an apocalyptic number.

23221033020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23221033020 is an abundant number, since it is smaller than the sum of its proper divisors (49624212684).

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

23221033020 is a wasteful number, since it uses less digits than its factorization.

23221033020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14333992 (or 14333981 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 23221033020 its reverse (2033012232), we get a palindrome (25254045252).

The spelling of 23221033020 in words is "twenty-three billion, two hundred twenty-one million, thirty-three thousand, twenty".