221314304412 has 18 divisors (see below), whose sum is σ = 559433380688. Its totient is φ = 73771434792.

The previous prime is 221314304329. The next prime is 221314304413. The reversal of 221314304412 is 214403413122.

221314304412 is a `hidden beast` number, since 2 + 2 + 1 + 314 + 304 + 41 + 2 = 666.

221314304412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221314304413) 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 5 ways as a sum of consecutive naturals, for example, 3073809748 + ... + 3073809819.

Almost surely, 2^221314304412 is an apocalyptic number.

It is an amenable number.

221314304412 is an abundant number, since it is smaller than the sum of its proper divisors (338119076276).

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

221314304412 is a wasteful number, since it uses less digits than its factorization.

221314304412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6147619577 (or 6147619572 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 221314304412 its reverse (214403413122), we get a palindrome (435717717534).

The spelling of 221314304412 in words is "two hundred twenty-one billion, three hundred fourteen million, three hundred four thousand, four hundred twelve".