21322123330 has 16 divisors (see below), whose sum is σ = 39617881344. Its totient is φ = 8253725040.

The previous prime is 21322123327. The next prime is 21322123397. The reversal of 21322123330 is 3332122312.

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 7 ways as a sum of consecutive naturals, for example, 34390212 + ... + 34390831.

It is an arithmetic number, because the mean of its divisors is an integer number (2476117584).

Almost surely, 2^21322123330 is an apocalyptic number.

21322123330 is a deficient number, since it is larger than the sum of its proper divisors (18295758014).

21322123330 is a wasteful number, since it uses less digits than its factorization.

21322123330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68781081.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21322123330 its reverse (3332122312), we get a palindrome (24654245642).

The spelling of 21322123330 in words is "twenty-one billion, three hundred twenty-two million, one hundred twenty-three thousand, three hundred thirty".