201130221 has 16 divisors (see below), whose sum is σ = 274852160. Its totient is φ = 130757760.

The previous prime is 201130207. The next prime is 201130229. The reversal of 201130221 is 122031102.

It is not a de Polignac number, because 201130221 - 2¹⁰ = 201129197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201130197 and 201130206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201130229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144951 + ... + 146331.

It is an arithmetic number, because the mean of its divisors is an integer number (17178260).

Almost surely, 2^201130221 is an apocalyptic number.

It is an amenable number.

201130221 is a deficient number, since it is larger than the sum of its proper divisors (73721939).

201130221 is a wasteful number, since it uses less digits than its factorization.

201130221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2556.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 201130221 is about 14182.0386757335. The cubic root of 201130221 is about 585.9030744731.

Adding to 201130221 its reverse (122031102), we get a palindrome (323161323).

The spelling of 201130221 in words is "two hundred one million, one hundred thirty thousand, two hundred twenty-one".