221120010211 has 4 divisors (see below), whose sum is σ = 224234376624. Its totient is φ = 218005643800.

The previous prime is 221120010203. The next prime is 221120010229. The reversal of 221120010211 is 112010021122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 221120010211 - 2³ = 221120010203 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221120010191 and 221120010200.

It is not an unprimeable number, because it can be changed into a prime (221120010271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1557183100 + ... + 1557183241.

It is an arithmetic number, because the mean of its divisors is an integer number (56058594156).

Almost surely, 2^221120010211 is an apocalyptic number.

221120010211 is a deficient number, since it is larger than the sum of its proper divisors (3114366413).

221120010211 is an equidigital number, since it uses as much as digits as its factorization.

221120010211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3114366412.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 221120010211 its reverse (112010021122), we get a palindrome (333130031333).

The spelling of 221120010211 in words is "two hundred twenty-one billion, one hundred twenty million, ten thousand, two hundred eleven".