221120120211 has 32 divisors (see below), whose sum is σ = 302480640000. Its totient is φ = 143605260288.

The previous prime is 221120120203. The next prime is 221120120231. The reversal of 221120120211 is 112021021122.

It is not a de Polignac number, because 221120120211 - 2³ = 221120120203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221120120231) 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, 142749465 + ... + 142751013.

It is an arithmetic number, because the mean of its divisors is an integer number (9452520000).

Almost surely, 2^221120120211 is an apocalyptic number.

221120120211 is a deficient number, since it is larger than the sum of its proper divisors (81360519789).

221120120211 is a wasteful number, since it uses less digits than its factorization.

221120120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3803.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 221120120211 its reverse (112021021122), we get a palindrome (333141141333).

The spelling of 221120120211 in words is "two hundred twenty-one billion, one hundred twenty million, one hundred twenty thousand, two hundred eleven".