21422430322 has 64 divisors (see below), whose sum is σ = 35165813760. Its totient is φ = 9760855104.

The previous prime is 21422430319. The next prime is 21422430397. The reversal of 21422430322 is 22303422412.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14444593 + ... + 14446075.

It is an arithmetic number, because the mean of its divisors is an integer number (549465840).

Almost surely, 2^21422430322 is an apocalyptic number.

21422430322 is a deficient number, since it is larger than the sum of its proper divisors (13743383438).

21422430322 is a wasteful number, since it uses less digits than its factorization.

21422430322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1727.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 21422430322 its reverse (22303422412), we get a palindrome (43725852734).

The spelling of 21422430322 in words is "twenty-one billion, four hundred twenty-two million, four hundred thirty thousand, three hundred twenty-two".