22021301230320 has 160 divisors (see below), whose sum is σ = 78037253296128. Its totient is φ = 5032219060224.

The previous prime is 22021301230283. The next prime is 22021301230333. The reversal of 22021301230320 is 2303210312022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 5345292 + ... + 8521428.

Almost surely, 2^{22021301230320} is an apocalyptic number.

22021301230320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22021301230320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39018626648064).

22021301230320 is an abundant number, since it is smaller than the sum of its proper divisors (56015952065808).

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

22021301230320 is a wasteful number, since it uses less digits than its factorization.

22021301230320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3180287 (or 3180281 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 22021301230320 its reverse (2303210312022), we get a palindrome (24324511542342).

The spelling of 22021301230320 in words is "twenty-two trillion, twenty-one billion, three hundred one million, two hundred thirty thousand, three hundred twenty".