23225440012 has 12 divisors (see below), whose sum is σ = 40645677240. Its totient is φ = 11612389376.

The previous prime is 23225439949. The next prime is 23225440019. The reversal of 23225440012 is 21004452232.

It is not an unprimeable number, because it can be changed into a prime (23225440019) 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, 145164 + ... + 259852.

It is an arithmetic number, because the mean of its divisors is an integer number (3387139770).

Almost surely, 2^23225440012 is an apocalyptic number.

It is an amenable number.

23225440012 is a deficient number, since it is larger than the sum of its proper divisors (17420237228).

23225440012 is a wasteful number, since it uses less digits than its factorization.

23225440012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165320 (or 165318 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 23225440012 its reverse (21004452232), we get a palindrome (44229892244).

The spelling of 23225440012 in words is "twenty-three billion, two hundred twenty-five million, four hundred forty thousand, twelve".