220221011220211 has 4 divisors (see below), whose sum is σ = 220226094968400. Its totient is φ = 220215927472024.

The previous prime is 220221011220191. The next prime is 220221011220257. The reversal of 220221011220211 is 112022110122022.

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 220221011220211 - 2¹⁹ = 220221010695923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220221011290211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2541809116 + ... + 2541895753.

It is an arithmetic number, because the mean of its divisors is an integer number (55056523742100).

Almost surely, 2^{220221011220211} is an apocalyptic number.

220221011220211 is a deficient number, since it is larger than the sum of its proper divisors (5083748189).

220221011220211 is an equidigital number, since it uses as much as digits as its factorization.

220221011220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5083748188.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 220221011220211 its reverse (112022110122022), we get a palindrome (332243121342233).

The spelling of 220221011220211 in words is "two hundred twenty trillion, two hundred twenty-one billion, eleven million, two hundred twenty thousand, two hundred eleven".