12221111207 has 2 divisors, whose sum is σ = 12221111208. Its totient is φ = 12221111206.

The previous prime is 12221111197. The next prime is 12221111213. The reversal of 12221111207 is 70211112221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12221111207 - 2¹⁰ = 12221110183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12221111237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110555603 + 6110555604.

It is an arithmetic number, because the mean of its divisors is an integer number (6110555604).

Almost surely, 2^12221111207 is an apocalyptic number.

12221111207 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221111207 is an equidigital number, since it uses as much as digits as its factorization.

12221111207 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 20.

Adding to 12221111207 its reverse (70211112221), we get a palindrome (82432223428).

The spelling of 12221111207 in words is "twelve billion, two hundred twenty-one million, one hundred eleven thousand, two hundred seven".