21224414334 has 8 divisors (see below), whose sum is σ = 42448828680. Its totient is φ = 7074804776.

The previous prime is 21224414317. The next prime is 21224414347. The reversal of 21224414334 is 43341442212.

It is a sphenic number, since it is the product of 3 distinct primes.

21224414334 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1768701189 + ... + 1768701200.

It is an arithmetic number, because the mean of its divisors is an integer number (5306103585).

Almost surely, 2^21224414334 is an apocalyptic number.

21224414334 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21224414334 is a wasteful number, since it uses less digits than its factorization.

21224414334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3537402394.

The product of its digits is 18432, while the sum is 30.

Adding to 21224414334 its reverse (43341442212), we get a palindrome (64565856546).

The spelling of 21224414334 in words is "twenty-one billion, two hundred twenty-four million, four hundred fourteen thousand, three hundred thirty-four".