11001221207 has 2 divisors, whose sum is σ = 11001221208. Its totient is φ = 11001221206.

The previous prime is 11001221201. The next prime is 11001221233. The reversal of 11001221207 is 70212210011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11001221207 - 2¹² = 11001217111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11001221201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500610603 + 5500610604.

It is an arithmetic number, because the mean of its divisors is an integer number (5500610604).

Almost surely, 2^11001221207 is an apocalyptic number.

11001221207 is a deficient number, since it is larger than the sum of its proper divisors (1).

11001221207 is an equidigital number, since it uses as much as digits as its factorization.

11001221207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 17.

Adding to 11001221207 its reverse (70212210011), we get a palindrome (81213431218).

The spelling of 11001221207 in words is "eleven billion, one million, two hundred twenty-one thousand, two hundred seven".