11220022201 has 2 divisors, whose sum is σ = 11220022202. Its totient is φ = 11220022200.

The previous prime is 11220022199. The next prime is 11220022237. The reversal of 11220022201 is 10222002211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11206339600 + 13682601 = 105860^2 + 3699^2 .

It is a cyclic number.

It is not a de Polignac number, because 11220022201 - 2¹ = 11220022199 is a prime.

Together with 11220022199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11220022241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610011100 + 5610011101.

It is an arithmetic number, because the mean of its divisors is an integer number (5610011101).

Almost surely, 2^11220022201 is an apocalyptic number.

It is an amenable number.

11220022201 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220022201 is an equidigital number, since it uses as much as digits as its factorization.

11220022201 is an evil number, because the sum of its binary digits is even.

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

Adding to 11220022201 its reverse (10222002211), we get a palindrome (21442024412).

The spelling of 11220022201 in words is "eleven billion, two hundred twenty million, twenty-two thousand, two hundred one".