21302022322230 has 128 divisors (see below), whose sum is σ = 57177697046400. Its totient is φ = 5043061653504.

The previous prime is 21302022322219. The next prime is 21302022322241. The reversal of 21302022322230 is 3222322020312.

It is an interprime number because it is at equal distance from previous prime (21302022322219) and next prime (21302022322241).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 21302022322230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 757665 + ... + 6571004.

It is an arithmetic number, because the mean of its divisors is an integer number (446700758175).

Almost surely, 2^{21302022322230} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21302022322230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28588848523200).

21302022322230 is an abundant number, since it is smaller than the sum of its proper divisors (35875674724170).

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

21302022322230 is a wasteful number, since it uses less digits than its factorization.

21302022322230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7328978.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 21302022322230 its reverse (3222322020312), we get a palindrome (24524344342542).

The spelling of 21302022322230 in words is "twenty-one trillion, three hundred two billion, twenty-two million, three hundred twenty-two thousand, two hundred thirty".