21064430510322 has 128 divisors (see below), whose sum is σ = 45991578124800. Its totient is φ = 6407475757056.

The previous prime is 21064430510297. The next prime is 21064430510323. The reversal of 21064430510322 is 22301503446012.

It is not an unprimeable number, because it can be changed into a prime (21064430510323) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 95871963 + ... + 96091425.

It is an arithmetic number, because the mean of its divisors is an integer number (359309204100).

Almost surely, 2^{21064430510322} is an apocalyptic number.

21064430510322 is an abundant number, since it is smaller than the sum of its proper divisors (24927147614478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21064430510322 is a wasteful number, since it uses less digits than its factorization.

21064430510322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219780.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 21064430510322 its reverse (22301503446012), we get a palindrome (43365933956334).

The spelling of 21064430510322 in words is "twenty-one trillion, sixty-four billion, four hundred thirty million, five hundred ten thousand, three hundred twenty-two".