23221023233320 has 192 divisors, whose sum is σ = 59420442186000. Its totient is φ = 8151287316480.

The previous prime is 23221023233269. The next prime is 23221023233339. The reversal of 23221023233320 is 2333232012232.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 8057615896836 + 15163407336484 = 2838594^2 + 3894022^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 938855674 + ... + 938880406.

Almost surely, 2^{23221023233320} is an apocalyptic number.

23221023233320 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 23221023233320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29710221093000).

23221023233320 is an abundant number, since it is smaller than the sum of its proper divisors (36199418952680).

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

23221023233320 is a wasteful number, since it uses less digits than its factorization.

23221023233320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31484 (or 31469 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 23221023233320 its reverse (2333232012232), we get a palindrome (25554255245552).

The spelling of 23221023233320 in words is "twenty-three trillion, two hundred twenty-one billion, twenty-three million, two hundred thirty-three thousand, three hundred twenty".