23220133020 has 144 divisors (see below), whose sum is σ = 80782141440. Its totient is φ = 5288623488.

The previous prime is 23220133003. The next prime is 23220133021. The reversal of 23220133020 is 2033102232.

It is a happy number.

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 = 23220132984 and 23220133002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23220133021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 324021 + ... + 389139.

Almost surely, 2^23220133020 is an apocalyptic number.

23220133020 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 23220133020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40391070720).

23220133020 is an abundant number, since it is smaller than the sum of its proper divisors (57562008420).

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

23220133020 is a wasteful number, since it uses less digits than its factorization.

23220133020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65424 (or 65419 counting only the distinct ones).

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

Adding to 23220133020 its reverse (2033102232), we get a palindrome (25253235252).

The spelling of 23220133020 in words is "twenty-three billion, two hundred twenty million, one hundred thirty-three thousand, twenty".