11212002001 has 2 divisors, whose sum is σ = 11212002002. Its totient is φ = 11212002000.

The previous prime is 11212001987. The next prime is 11212002007. The reversal of 11212002001 is 10020021211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10949529600 + 262472401 = 104640^2 + 16201^2 .

It is an emirp because it is prime and its reverse (10020021211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11212002001 - 2⁷ = 11212001873 is a prime.

It is not a weakly prime, because it can be changed into another prime (11212002007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606001000 + 5606001001.

It is an arithmetic number, because the mean of its divisors is an integer number (5606001001).

Almost surely, 2^11212002001 is an apocalyptic number.

It is an amenable number.

11212002001 is a deficient number, since it is larger than the sum of its proper divisors (1).

11212002001 is an equidigital number, since it uses as much as digits as its factorization.

11212002001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 11212002001 its reverse (10020021211), we get a palindrome (21232023212).

The spelling of 11212002001 in words is "eleven billion, two hundred twelve million, two thousand, one".