23505221412 has 24 divisors (see below), whose sum is σ = 60939463200. Its totient is φ = 7835073768.

The previous prime is 23505221393. The next prime is 23505221413. The reversal of 23505221412 is 21412250532.

23505221412 is a `hidden beast` number, since 23 + 5 + 0 + 5 + 221 + 412 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (23505221413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108820362 + ... + 108820577.

It is an arithmetic number, because the mean of its divisors is an integer number (2539144300).

Almost surely, 2^23505221412 is an apocalyptic number.

It is an amenable number.

23505221412 is an abundant number, since it is smaller than the sum of its proper divisors (37434241788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23505221412 is a wasteful number, since it uses less digits than its factorization.

23505221412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217640952 (or 217640944 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 23505221412 its reverse (21412250532), we get a palindrome (44917471944).

The spelling of 23505221412 in words is "twenty-three billion, five hundred five million, two hundred twenty-one thousand, four hundred twelve".