2212201 has 4 divisors (see below), whose sum is σ = 2231892. Its totient is φ = 2192512.

The previous prime is 2212187. The next prime is 2212219. The reversal of 2212201 is 1022122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1022122 = 2 ⋅511061.

It can be written as a sum of positive squares in 2 ways, for example, as 1000000 + 1212201 = 1000^2 + 1101^2 .

It is a cyclic number.

It is not a de Polignac number, because 2212201 - 2⁵ = 2212169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2212241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9676 + ... + 9901.

It is an arithmetic number, because the mean of its divisors is an integer number (557973).

2^2212201 is an apocalyptic number.

It is an amenable number.

2212201 is a deficient number, since it is larger than the sum of its proper divisors (19691).

2212201 is a wasteful number, since it uses less digits than its factorization.

2212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19690.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2212201 is about 1487.3469669179. The cubic root of 2212201 is about 130.2991336424.

Adding to 2212201 its reverse (1022122), we get a palindrome (3234323).

The spelling of 2212201 in words is "two million, two hundred twelve thousand, two hundred one".