11221212007 has 2 divisors, whose sum is σ = 11221212008. Its totient is φ = 11221212006.

The previous prime is 11221212001. The next prime is 11221212019. The reversal of 11221212007 is 70021212211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11221212007 - 2¹⁹ = 11220687719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11221212001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610606003 + 5610606004.

It is an arithmetic number, because the mean of its divisors is an integer number (5610606004).

Almost surely, 2^11221212007 is an apocalyptic number.

11221212007 is a deficient number, since it is larger than the sum of its proper divisors (1).

11221212007 is an equidigital number, since it uses as much as digits as its factorization.

11221212007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 11221212007 its reverse (70021212211), we get a palindrome (81242424218).

The spelling of 11221212007 in words is "eleven billion, two hundred twenty-one million, two hundred twelve thousand, seven".