1222344567887 has 2 divisors, whose sum is σ = 1222344567888. Its totient is φ = 1222344567886.

The previous prime is 1222344567877. The next prime is 1222344567907. The reversal of 1222344567887 is 7887654432221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222344567887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222344567817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611172283943 + 611172283944.

It is an arithmetic number, because the mean of its divisors is an integer number (611172283944).

Almost surely, 2^{1222344567887} is an apocalyptic number.

1222344567887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222344567887 is an equidigital number, since it uses as much as digits as its factorization.

1222344567887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36126720, while the sum is 59.

The spelling of 1222344567887 in words is "one trillion, two hundred twenty-two billion, three hundred forty-four million, five hundred sixty-seven thousand, eight hundred eighty-seven".