1122211222277 has 2 divisors, whose sum is σ = 1122211222278. Its totient is φ = 1122211222276.

The previous prime is 1122211222207. The next prime is 1122211222289. The reversal of 1122211222277 is 7722221122211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 610701612676 + 511509609601 = 781474^2 + 715199^2 .

It is an emirp because it is prime and its reverse (7722221122211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1122211222277 - 2²⁶ = 1122144113413 is a prime.

It is a zygodrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122211222207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561105611138 + 561105611139.

It is an arithmetic number, because the mean of its divisors is an integer number (561105611139).

Almost surely, 2^{1122211222277} is an apocalyptic number.

It is an amenable number.

1122211222277 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122211222277 is an equidigital number, since it uses as much as digits as its factorization.

1122211222277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6272, while the sum is 32.

Adding to 1122211222277 its reverse (7722221122211), we get a palindrome (8844432344488).

The spelling of 1122211222277 in words is "one trillion, one hundred twenty-two billion, two hundred eleven million, two hundred twenty-two thousand, two hundred seventy-seven".