23221132012 has 18 divisors (see below), whose sum is σ = 44003359428. Its totient is φ = 10717445232.

The previous prime is 23221131893. The next prime is 23221132037. The reversal of 23221132012 is 21023112232.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 17174718 + ... + 17176069.

Almost surely, 2^23221132012 is an apocalyptic number.

It is an amenable number.

23221132012 is a deficient number, since it is larger than the sum of its proper divisors (20782227416).

23221132012 is a wasteful number, since it uses less digits than its factorization.

23221132012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34350817 (or 34350802 counting only the distinct ones).

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

Adding to 23221132012 its reverse (21023112232), we get a palindrome (44244244244).

The spelling of 23221132012 in words is "twenty-three billion, two hundred twenty-one million, one hundred thirty-two thousand, twelve".