221130120211 has 32 divisors (see below), whose sum is σ = 307140019200. Its totient is φ = 153569969280.

The previous prime is 221130120209. The next prime is 221130120229. The reversal of 221130120211 is 112021031122.

It is not a de Polignac number, because 221130120211 - 2¹ = 221130120209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221130120271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3779751 + ... + 3837808.

It is an arithmetic number, because the mean of its divisors is an integer number (9598125600).

Almost surely, 2^221130120211 is an apocalyptic number.

221130120211 is a deficient number, since it is larger than the sum of its proper divisors (86009898989).

221130120211 is a wasteful number, since it uses less digits than its factorization.

221130120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7617619.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 221130120211 its reverse (112021031122), we get a palindrome (333151151333).

The spelling of 221130120211 in words is "two hundred twenty-one billion, one hundred thirty million, one hundred twenty thousand, two hundred eleven".