221022441330 has 96 divisors (see below), whose sum is σ = 560172412800. Its totient is φ = 55804287744.

The previous prime is 221022441329. The next prime is 221022441331. The reversal of 221022441330 is 33144220122.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (221022441329) and next prime (221022441331).

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 221022441330.

It is not an unprimeable number, because it can be changed into a prime (221022441331) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22077366 + ... + 22087374.

It is an arithmetic number, because the mean of its divisors is an integer number (5835129300).

Almost surely, 2^221022441330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221022441330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280086206400).

221022441330 is an abundant number, since it is smaller than the sum of its proper divisors (339149971470).

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

221022441330 is a wasteful number, since it uses less digits than its factorization.

221022441330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12096 (or 12077 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 221022441330 its reverse (33144220122), we get a palindrome (254166661452).

The spelling of 221022441330 in words is "two hundred twenty-one billion, twenty-two million, four hundred forty-one thousand, three hundred thirty".