1122223456777 has 4 divisors (see below), whose sum is σ = 1123698126996. Its totient is φ = 1120748786560.

The previous prime is 1122223456769. The next prime is 1122223456817. The reversal of 1122223456777 is 7776543222211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 460415174521 + 661808282256 = 678539^2 + 813516^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122223456777 - 2³ = 1122223456769 is a prime.

It is a super-3 number, since 3×1122223456777³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 1122223456777.

It is not an unprimeable number, because it can be changed into a prime (1122223456727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 737333968 + ... + 737335489.

It is an arithmetic number, because the mean of its divisors is an integer number (280924531749).

Almost surely, 2^{1122223456777} is an apocalyptic number.

It is an amenable number.

1122223456777 is a deficient number, since it is larger than the sum of its proper divisors (1474670219).

1122223456777 is an equidigital number, since it uses as much as digits as its factorization.

1122223456777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474670218.

The product of its digits is 1975680, while the sum is 49.

Adding to 1122223456777 its reverse (7776543222211), we get a palindrome (8898766678988).

The spelling of 1122223456777 in words is "one trillion, one hundred twenty-two billion, two hundred twenty-three million, four hundred fifty-six thousand, seven hundred seventy-seven".