221130002 has 8 divisors (see below), whose sum is σ = 337132812. Its totient is φ = 108752400.

The previous prime is 221130001. The next prime is 221130031. The reversal of 221130002 is 200031122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 185477161 + 35652841 = 13619^2 + 5971^2 .

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 (221130001) 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, 906149 + ... + 906392.

Almost surely, 2^221130002 is an apocalyptic number.

221130002 is a deficient number, since it is larger than the sum of its proper divisors (116002810).

221130002 is a wasteful number, since it uses less digits than its factorization.

221130002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812604.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 221130002 is about 14870.4405449200. The cubic root of 221130002 is about 604.7128861009.

Adding to 221130002 its reverse (200031122), we get a palindrome (421161124).

The spelling of 221130002 in words is "two hundred twenty-one million, one hundred thirty thousand, two".