21244224214 has 16 divisors (see below), whose sum is σ = 32947254000. Its totient is φ = 10265660064.

The previous prime is 21244224179. The next prime is 21244224269. The reversal of 21244224214 is 41242244212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 952344 + ... + 974395.

It is an arithmetic number, because the mean of its divisors is an integer number (2059203375).

Almost surely, 2^21244224214 is an apocalyptic number.

21244224214 is a deficient number, since it is larger than the sum of its proper divisors (11703029786).

21244224214 is a wasteful number, since it uses less digits than its factorization.

21244224214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1926927.

The product of its digits is 8192, while the sum is 28.

Adding to 21244224214 its reverse (41242244212), we get a palindrome (62486468426).

The spelling of 21244224214 in words is "twenty-one billion, two hundred forty-four million, two hundred twenty-four thousand, two hundred fourteen".