21342214304 has 36 divisors (see below), whose sum is σ = 42654258234. Its totient is φ = 10511766144.

The previous prime is 21342214297. The next prime is 21342214321. The reversal of 21342214304 is 40341224312.

It can be written as a sum of positive squares in only one way, i.e., 21333523600 + 8690704 = 146060^2 + 2948^2 .

It is a super-2 number, since 2×21342214304² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69362 + ... + 217934.

Almost surely, 2^21342214304 is an apocalyptic number.

It is an amenable number.

21342214304 is a deficient number, since it is larger than the sum of its proper divisors (21312043930).

21342214304 is an equidigital number, since it uses as much as digits as its factorization.

21342214304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148717 (or 148642 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 21342214304 its reverse (40341224312), we get a palindrome (61683438616).

The spelling of 21342214304 in words is "twenty-one billion, three hundred forty-two million, two hundred fourteen thousand, three hundred four".