1222120307 has 2 divisors, whose sum is σ = 1222120308. Its totient is φ = 1222120306.

The previous prime is 1222120297. The next prime is 1222120309. The reversal of 1222120307 is 7030212221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1222120307 - 2⁸ = 1222120051 is a prime.

Together with 1222120309, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1222120309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611060153 + 611060154.

It is an arithmetic number, because the mean of its divisors is an integer number (611060154).

Almost surely, 2^1222120307 is an apocalyptic number.

1222120307 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222120307 is an equidigital number, since it uses as much as digits as its factorization.

1222120307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 1222120307 is about 34958.8373233436. The cubic root of 1222120307 is about 1069.1483913022.

Adding to 1222120307 its reverse (7030212221), we get a palindrome (8252332528).

The spelling of 1222120307 in words is "one billion, two hundred twenty-two million, one hundred twenty thousand, three hundred seven".