21332210234 has 16 divisors (see below), whose sum is σ = 33482999040. Its totient is φ = 10180637280.

The previous prime is 21332210227. The next prime is 21332210239. The reversal of 21332210234 is 43201223312.

It is not an unprimeable number, because it can be changed into a prime (21332210239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2352104 + ... + 2361155.

It is an arithmetic number, because the mean of its divisors is an integer number (2092687440).

Almost surely, 2^21332210234 is an apocalyptic number.

21332210234 is a deficient number, since it is larger than the sum of its proper divisors (12150788806).

21332210234 is a wasteful number, since it uses less digits than its factorization.

21332210234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4713365.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 21332210234 its reverse (43201223312), we get a palindrome (64533433546).

The spelling of 21332210234 in words is "twenty-one billion, three hundred thirty-two million, two hundred ten thousand, two hundred thirty-four".