221002321130 has 8 divisors (see below), whose sum is σ = 397804178052. Its totient is φ = 88400928448.

The previous prime is 221002321121. The next prime is 221002321193. The reversal of 221002321130 is 31123200122.

It can be written as a sum of positive squares in 2 ways, for example, as 200264305081 + 20738016049 = 447509^2 + 144007^2 .

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 = 221002321099 and 221002321108.

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, 11050116047 + ... + 11050116066.

Almost surely, 2^221002321130 is an apocalyptic number.

221002321130 is a deficient number, since it is larger than the sum of its proper divisors (176801856922).

221002321130 is a wasteful number, since it uses less digits than its factorization.

221002321130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22100232120.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 221002321130 its reverse (31123200122), we get a palindrome (252125521252).

The spelling of 221002321130 in words is "two hundred twenty-one billion, two million, three hundred twenty-one thousand, one hundred thirty".