222201211 has 12 divisors (see below), whose sum is σ = 231801024. Its totient is φ = 212770800.

The previous prime is 222201197. The next prime is 222201247. The reversal of 222201211 is 112102222.

It is a happy number.

It is not a de Polignac number, because 222201211 - 2¹³ = 222193019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222201191 and 222201200.

It is not an unprimeable number, because it can be changed into a prime (222201911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1116490 + ... + 1116688.

It is an arithmetic number, because the mean of its divisors is an integer number (19316752).

Almost surely, 2^222201211 is an apocalyptic number.

222201211 is a deficient number, since it is larger than the sum of its proper divisors (9599813).

222201211 is an equidigital number, since it uses as much as digits as its factorization.

222201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610 (or 411 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 222201211 is about 14906.4150955218. The cubic root of 222201211 is about 605.6877737134.

Adding to 222201211 its reverse (112102222), we get a palindrome (334303433).

The spelling of 222201211 in words is "two hundred twenty-two million, two hundred one thousand, two hundred eleven".