221040322 has 8 divisors (see below), whose sum is σ = 332545356. Its totient is φ = 110191872.

The previous prime is 221040301. The next prime is 221040353. The reversal of 221040322 is 223040122.

221040322 is digitally balanced in base 2 and base 3, because in such bases 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 216413521 + 4626801 = 14711^2 + 2151^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 221040296 and 221040305.

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, 163303 + ... + 164650.

Almost surely, 2^221040322 is an apocalyptic number.

221040322 is a deficient number, since it is larger than the sum of its proper divisors (111505034).

221040322 is a wasteful number, since it uses less digits than its factorization.

221040322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328292.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 221040322 is about 14867.4248610847. The cubic root of 221040322 is about 604.6311272804.

Adding to 221040322 its reverse (223040122), we get a palindrome (444080444).

The spelling of 221040322 in words is "two hundred twenty-one million, forty thousand, three hundred twenty-two".