11220202001 has 2 divisors, whose sum is σ = 11220202002. Its totient is φ = 11220202000.

The previous prime is 11220201991. The next prime is 11220202057. The reversal of 11220202001 is 10020202211.

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., 11104101376 + 116100625 = 105376^2 + 10775^2 .

It is an emirp because it is prime and its reverse (10020202211) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11220202001 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11220222001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610101000 + 5610101001.

It is an arithmetic number, because the mean of its divisors is an integer number (5610101001).

Almost surely, 2^11220202001 is an apocalyptic number.

It is an amenable number.

11220202001 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220202001 is an equidigital number, since it uses as much as digits as its factorization.

11220202001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 11220202001 its reverse (10020202211), we get a palindrome (21240404212).

The spelling of 11220202001 in words is "eleven billion, two hundred twenty million, two hundred two thousand, one".