221033322 has 24 divisors (see below), whose sum is σ = 480428676. Its totient is φ = 73443456.

The previous prime is 221033299. The next prime is 221033333. The reversal of 221033322 is 223330122.

It is a happy number.

221033322 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 168194961 + 52838361 = 12969^2 + 7269^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 221033295 and 221033304.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13663 + ... + 25074.

Almost surely, 2^221033322 is an apocalyptic number.

221033322 is an abundant number, since it is smaller than the sum of its proper divisors (259395354).

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

221033322 is a wasteful number, since it uses less digits than its factorization.

221033322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39062 (or 39059 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 221033322 is about 14867.1894452179. The cubic root of 221033322 is about 604.6247446402.

Adding to 221033322 its reverse (223330122), we get a palindrome (444363444).

It can be divided in two parts, 22103 and 3322, that added together give a triangular number (25425 = T₂₂₅).

The spelling of 221033322 in words is "two hundred twenty-one million, thirty-three thousand, three hundred twenty-two".