21302122330 has 32 divisors (see below), whose sum is σ = 38582879040. Its totient is φ = 8467787520.

The previous prime is 21302122307. The next prime is 21302122333. The reversal of 21302122330 is 3322120312.

It is a junction number, because it is equal to n+sod(n) for n = 21302122298 and 21302122307.

It is not an unprimeable number, because it can be changed into a prime (21302122333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3865437 + ... + 3870943.

It is an arithmetic number, because the mean of its divisors is an integer number (1205714970).

Almost surely, 2^21302122330 is an apocalyptic number.

21302122330 is a deficient number, since it is larger than the sum of its proper divisors (17280756710).

21302122330 is a wasteful number, since it uses less digits than its factorization.

21302122330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7854.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21302122330 its reverse (3322120312), we get a palindrome (24624242642).

The spelling of 21302122330 in words is "twenty-one billion, three hundred two million, one hundred twenty-two thousand, three hundred thirty".