21443304222 has 12 divisors (see below), whose sum is σ = 46460492520. Its totient is φ = 7147768068.

The previous prime is 21443304217. The next prime is 21443304251. The reversal of 21443304222 is 22240334412.

21443304222 is a `hidden beast` number, since 2 + 1 + 4 + 433 + 0 + 4 + 222 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 595647322 + ... + 595647357.

It is an arithmetic number, because the mean of its divisors is an integer number (3871707710).

Almost surely, 2^21443304222 is an apocalyptic number.

21443304222 is an abundant number, since it is smaller than the sum of its proper divisors (25017188298).

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

21443304222 is a wasteful number, since it uses less digits than its factorization.

21443304222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191294687 (or 1191294684 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 21443304222 its reverse (22240334412), we get a palindrome (43683638634).

The spelling of 21443304222 in words is "twenty-one billion, four hundred forty-three million, three hundred four thousand, two hundred twenty-two".