100221322 has 8 divisors (see below), whose sum is σ = 151201476. Its totient is φ = 49820832.

The previous prime is 100221311. The next prime is 100221323. The reversal of 100221322 is 223122001.

It can be written as a sum of positive squares in 2 ways, for example, as 98783721 + 1437601 = 9939^2 + 1199^2 .

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

It is not an unprimeable number, because it can be changed into a prime (100221323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144483 + ... + 145174.

Almost surely, 2^100221322 is an apocalyptic number.

100221322 is a deficient number, since it is larger than the sum of its proper divisors (50980154).

100221322 is a wasteful number, since it uses less digits than its factorization.

100221322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289832.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 100221322 is about 10011.0599838379. The cubic root of 100221322 is about 464.5010596228.

Adding to 100221322 its reverse (223122001), we get a palindrome (323343323).

The spelling of 100221322 in words is "one hundred million, two hundred twenty-one thousand, three hundred twenty-two".