220221220222211 has 16 divisors (see below), whose sum is σ = 237204310828800. Its totient is φ = 203244275301408.

The previous prime is 220221220222189. The next prime is 220221220222249. The reversal of 220221220222211 is 112222022122022.

It is a cyclic number.

It is not a de Polignac number, because 220221220222211 - 2¹⁴ = 220221220205827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220221220222261) 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 15 ways as a sum of consecutive naturals, for example, 1985010380 + ... + 1985121318.

It is an arithmetic number, because the mean of its divisors is an integer number (14825269426800).

Almost surely, 2^{220221220222211} is an apocalyptic number.

220221220222211 is a deficient number, since it is larger than the sum of its proper divisors (16983090606589).

220221220222211 is a wasteful number, since it uses less digits than its factorization.

220221220222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137258.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 220221220222211 its reverse (112222022122022), we get a palindrome (332443242344233).

The spelling of 220221220222211 in words is "two hundred twenty trillion, two hundred twenty-one billion, two hundred twenty million, two hundred twenty-two thousand, two hundred eleven".