220221122211 has 24 divisors (see below), whose sum is σ = 319760600640. Its totient is φ = 146047028400.

The previous prime is 220221122183. The next prime is 220221122227. The reversal of 220221122211 is 112221122022.

It is a happy number.

220221122211 is a `hidden beast` number, since 220 + 2 + 211 + 22 + 211 = 666.

220221122211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 220221122211 - 2¹⁰ = 220221121187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220221122281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4019560 + ... + 4073978.

It is an arithmetic number, because the mean of its divisors is an integer number (13323358360).

Almost surely, 2^220221122211 is an apocalyptic number.

220221122211 is a deficient number, since it is larger than the sum of its proper divisors (99539478429).

220221122211 is a wasteful number, since it uses less digits than its factorization.

220221122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56767 (or 56764 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 220221122211 its reverse (112221122022), we get a palindrome (332442244233).

The spelling of 220221122211 in words is "two hundred twenty billion, two hundred twenty-one million, one hundred twenty-two thousand, two hundred eleven".