23221201012 has 12 divisors (see below), whose sum is σ = 41193774916. Its totient is φ = 11451551040.

The previous prime is 23221200941. The next prime is 23221201013. The reversal of 23221201012 is 21010212232.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7977347856 + 15243853156 = 89316^2 + 123466^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23221201013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39762039 + ... + 39762622.

Almost surely, 2^23221201012 is an apocalyptic number.

It is an amenable number.

23221201012 is a deficient number, since it is larger than the sum of its proper divisors (17972573904).

23221201012 is a wasteful number, since it uses less digits than its factorization.

23221201012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79524738 (or 79524736 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 23221201012 its reverse (21010212232), we get a palindrome (44231413244).

The spelling of 23221201012 in words is "twenty-three billion, two hundred twenty-one million, two hundred one thousand, twelve".