2201123213 has 2 divisors, whose sum is σ = 2201123214. Its totient is φ = 2201123212.

The previous prime is 2201123209. The next prime is 2201123261. The reversal of 2201123213 is 3123211022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2182478089 + 18645124 = 46717^2 + 4318^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201123213 - 2² = 2201123209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2201123191 and 2201123200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2201123203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100561606 + 1100561607.

It is an arithmetic number, because the mean of its divisors is an integer number (1100561607).

Almost surely, 2^2201123213 is an apocalyptic number.

It is an amenable number.

2201123213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201123213 is an equidigital number, since it uses as much as digits as its factorization.

2201123213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2201123213 is about 46916.1295611648. The cubic root of 2201123213 is about 1300.8127487726.

Adding to 2201123213 its reverse (3123211022), we get a palindrome (5324334235).

The spelling of 2201123213 in words is "two billion, two hundred one million, one hundred twenty-three thousand, two hundred thirteen".