11222122201 has 2 divisors, whose sum is σ = 11222122202. Its totient is φ = 11222122200.

The previous prime is 11222122193. The next prime is 11222122207. The reversal of 11222122201 is 10222122211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11172278601 + 49843600 = 105699^2 + 7060^2 .

It is a cyclic number.

It is not a de Polignac number, because 11222122201 - 2³ = 11222122193 is a prime.

It is not a weakly prime, because it can be changed into another prime (11222122207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611061100 + 5611061101.

It is an arithmetic number, because the mean of its divisors is an integer number (5611061101).

Almost surely, 2^11222122201 is an apocalyptic number.

It is an amenable number.

11222122201 is a deficient number, since it is larger than the sum of its proper divisors (1).

11222122201 is an equidigital number, since it uses as much as digits as its factorization.

11222122201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11222122201 its reverse (10222122211), we get a palindrome (21444244412).

The spelling of 11222122201 in words is "eleven billion, two hundred twenty-two million, one hundred twenty-two thousand, two hundred one".