11220222001 has 2 divisors, whose sum is σ = 11220222002. Its totient is φ = 11220222000.

The previous prime is 11220221963. The next prime is 11220222017. The reversal of 11220222001 is 10022202211.

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., 11189408400 + 30813601 = 105780^2 + 5551^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11220222001 is a prime.

It is not a weakly prime, because it can be changed into another prime (11220222701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610111000 + 5610111001.

It is an arithmetic number, because the mean of its divisors is an integer number (5610111001).

Almost surely, 2^11220222001 is an apocalyptic number.

It is an amenable number.

11220222001 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220222001 is an equidigital number, since it uses as much as digits as its factorization.

11220222001 is an odious number, because the sum of its binary digits is odd.

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

Adding to 11220222001 its reverse (10022202211), we get a palindrome (21242424212).

The spelling of 11220222001 in words is "eleven billion, two hundred twenty million, two hundred twenty-two thousand, one".