221330022 has 8 divisors (see below), whose sum is σ = 442660056. Its totient is φ = 73776672.

The previous prime is 221329991. The next prime is 221330047. The reversal of 221330022 is 220033122.

221330022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

221330022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 221329983 and 221330010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18444163 + ... + 18444174.

It is an arithmetic number, because the mean of its divisors is an integer number (55332507).

Almost surely, 2^221330022 is an apocalyptic number.

221330022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

221330022 is a wasteful number, since it uses less digits than its factorization.

221330022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36888342.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 221330022 is about 14877.1644475686. The cubic root of 221330022 is about 604.8951593028.

Adding to 221330022 its reverse (220033122), we get a palindrome (441363144).

The spelling of 221330022 in words is "two hundred twenty-one million, three hundred thirty thousand, twenty-two".