221323200412 has 48 divisors (see below), whose sum is σ = 406304317440. Its totient is φ = 105288942528.

The previous prime is 221323200391. The next prime is 221323200419. The reversal of 221323200412 is 214002323122.

221323200412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×221323200412² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221323200419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13346158 + ... + 13362730.

It is an arithmetic number, because the mean of its divisors is an integer number (8464673280).

Almost surely, 2^221323200412 is an apocalyptic number.

It is an amenable number.

221323200412 is a deficient number, since it is larger than the sum of its proper divisors (184981117028).

221323200412 is a wasteful number, since it uses less digits than its factorization.

221323200412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17362 (or 17360 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 221323200412 its reverse (214002323122), we get a palindrome (435325523534).

The spelling of 221323200412 in words is "two hundred twenty-one billion, three hundred twenty-three million, two hundred thousand, four hundred twelve".