221110020211 has 2 divisors, whose sum is σ = 221110020212. Its totient is φ = 221110020210.

The previous prime is 221110020191. The next prime is 221110020217. The reversal of 221110020211 is 112020011122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221110020211 - 2⁵ = 221110020179 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221110020191 and 221110020200.

It is not a weakly prime, because it can be changed into another prime (221110020217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110555010105 + 110555010106.

It is an arithmetic number, because the mean of its divisors is an integer number (110555010106).

Almost surely, 2^221110020211 is an apocalyptic number.

221110020211 is a deficient number, since it is larger than the sum of its proper divisors (1).

221110020211 is an equidigital number, since it uses as much as digits as its factorization.

221110020211 is an evil number, because the sum of its binary digits is even.

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

Adding to 221110020211 its reverse (112020011122), we get a palindrome (333130031333).

The spelling of 221110020211 in words is "two hundred twenty-one billion, one hundred ten million, twenty thousand, two hundred eleven".