220201211 has 4 divisors (see below), whose sum is σ = 220756272. Its totient is φ = 219646152.

The previous prime is 220201183. The next prime is 220201213. The reversal of 220201211 is 112102022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112102022 = 2 ⋅56051011.

It is a cyclic number.

It is not a de Polignac number, because 220201211 - 2¹⁸ = 219939067 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220201192 and 220201201.

It is not an unprimeable number, because it can be changed into a prime (220201213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276935 + ... + 277728.

It is an arithmetic number, because the mean of its divisors is an integer number (55189068).

Almost surely, 2^220201211 is an apocalyptic number.

220201211 is a deficient number, since it is larger than the sum of its proper divisors (555061).

220201211 is an equidigital number, since it uses as much as digits as its factorization.

220201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555060.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 220201211 is about 14839.1782454420. The cubic root of 220201211 is about 603.8650589225.

Adding to 220201211 its reverse (112102022), we get a palindrome (332303233).

The spelling of 220201211 in words is "two hundred twenty million, two hundred one thousand, two hundred eleven".