1222222111007 has 2 divisors, whose sum is σ = 1222222111008. Its totient is φ = 1222222111006.

The previous prime is 1222222111001. The next prime is 1222222111021. The reversal of 1222222111007 is 7001112222221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1222222111007 - 2³⁰ = 1221148369183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222222111001) 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, 611111055503 + 611111055504.

It is an arithmetic number, because the mean of its divisors is an integer number (611111055504).

Almost surely, 2^{1222222111007} is an apocalyptic number.

1222222111007 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222222111007 is an equidigital number, since it uses as much as digits as its factorization.

1222222111007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 23.

Adding to 1222222111007 its reverse (7001112222221), we get a palindrome (8223334333228).

The spelling of 1222222111007 in words is "one trillion, two hundred twenty-two billion, two hundred twenty-two million, one hundred eleven thousand, seven".