1222223345677 has 2 divisors, whose sum is σ = 1222223345678. Its totient is φ = 1222223345676.

The previous prime is 1222223345641. The next prime is 1222223345683. The reversal of 1222223345677 is 7765433222221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1221778726281 + 444619396 = 1105341^2 + 21086^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222223345677 - 2¹¹ = 1222223343629 is a prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222223345477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611111672838 + 611111672839.

It is an arithmetic number, because the mean of its divisors is an integer number (611111672839).

Almost surely, 2^{1222223345677} is an apocalyptic number.

It is an amenable number.

1222223345677 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222223345677 is an equidigital number, since it uses as much as digits as its factorization.

1222223345677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1693440, while the sum is 46.

Adding to 1222223345677 its reverse (7765433222221), we get a palindrome (8987656567898).

The spelling of 1222223345677 in words is "one trillion, two hundred twenty-two billion, two hundred twenty-three million, three hundred forty-five thousand, six hundred seventy-seven".