23221132210 has 24 divisors (see below), whose sum is σ = 42601611780. Its totient is φ = 9113188032.

The previous prime is 23221132199. The next prime is 23221132217. The reversal of 23221132210 is 1223112232.

It can be written as a sum of positive squares in 6 ways, for example, as 13438141929 + 9782990281 = 115923^2 + 98909^2 .

It is a super-2 number, since 2×23221132210² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23221132217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 385245 + ... + 441424.

Almost surely, 2^23221132210 is an apocalyptic number.

23221132210 is a deficient number, since it is larger than the sum of its proper divisors (19380479570).

23221132210 is an equidigital number, since it uses as much as digits as its factorization.

23221132210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826782 (or 826729 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 23221132210 its reverse (1223112232), we get a palindrome (24444244442).

The spelling of 23221132210 in words is "twenty-three billion, two hundred twenty-one million, one hundred thirty-two thousand, two hundred ten".