11221102001 has 2 divisors, whose sum is σ = 11221102002. Its totient is φ = 11221102000.

The previous prime is 11221101929. The next prime is 11221102019. The reversal of 11221102001 is 10020112211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7166469025 + 4054632976 = 84655^2 + 63676^2 .

It is a cyclic number.

It is not a de Polignac number, because 11221102001 - 2¹⁸ = 11220839857 is a prime.

It is not a weakly prime, because it can be changed into another prime (11221102021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610551000 + 5610551001.

It is an arithmetic number, because the mean of its divisors is an integer number (5610551001).

Almost surely, 2^11221102001 is an apocalyptic number.

It is an amenable number.

11221102001 is a deficient number, since it is larger than the sum of its proper divisors (1).

11221102001 is an equidigital number, since it uses as much as digits as its factorization.

11221102001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11221102001 its reverse (10020112211), we get a palindrome (21241214212).

The spelling of 11221102001 in words is "eleven billion, two hundred twenty-one million, one hundred two thousand, one".