23221130452 has 24 divisors (see below), whose sum is σ = 43773155496. Its totient is φ = 10714933248.

The previous prime is 23221130447. The next prime is 23221130557. The reversal of 23221130452 is 25403112232.

It can be written as a sum of positive squares in 4 ways, for example, as 4604165316 + 18616965136 = 67854^2 + 136444^2 .

It is a congruent number.

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, 181668 + ... + 281860.

It is an arithmetic number, because the mean of its divisors is an integer number (1823881479).

Almost surely, 2^23221130452 is an apocalyptic number.

It is an amenable number.

23221130452 is a deficient number, since it is larger than the sum of its proper divisors (20552025044).

23221130452 is a wasteful number, since it uses less digits than its factorization.

23221130452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104667 (or 104665 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 23221130452 its reverse (25403112232), we get a palindrome (48624242684).

The spelling of 23221130452 in words is "twenty-three billion, two hundred twenty-one million, one hundred thirty thousand, four hundred fifty-two".