11021212201 has 2 divisors, whose sum is σ = 11021212202. Its totient is φ = 11021212200.

The previous prime is 11021212193. The next prime is 11021212247. The reversal of 11021212201 is 10221212011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10967116176 + 54096025 = 104724^2 + 7355^2 .

It is an emirp because it is prime and its reverse (10221212011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11021212201 - 2³ = 11021212193 is a prime.

It is not a weakly prime, because it can be changed into another prime (11021212291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510606100 + 5510606101.

It is an arithmetic number, because the mean of its divisors is an integer number (5510606101).

Almost surely, 2^11021212201 is an apocalyptic number.

It is an amenable number.

11021212201 is a deficient number, since it is larger than the sum of its proper divisors (1).

11021212201 is an equidigital number, since it uses as much as digits as its factorization.

11021212201 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 13.

Adding to 11021212201 its reverse (10221212011), we get a palindrome (21242424212).

The spelling of 11021212201 in words is "eleven billion, twenty-one million, two hundred twelve thousand, two hundred one".