1222222111907 has 2 divisors, whose sum is σ = 1222222111908. Its totient is φ = 1222222111906.

The previous prime is 1222222111897. The next prime is 1222222111921. The reversal of 1222222111907 is 7091112222221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1222222111907 - 2⁸ = 1222222111651 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222222111987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611111055953 + 611111055954.

It is an arithmetic number, because the mean of its divisors is an integer number (611111055954).

Almost surely, 2^{1222222111907} is an apocalyptic number.

1222222111907 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222222111907 is an equidigital number, since it uses as much as digits as its factorization.

1222222111907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 32.

The spelling of 1222222111907 in words is "one trillion, two hundred twenty-two billion, two hundred twenty-two million, one hundred eleven thousand, nine hundred seven".