11122354777 has 2 divisors, whose sum is σ = 11122354778. Its totient is φ = 11122354776.

The previous prime is 11122354769. The next prime is 11122354801. The reversal of 11122354777 is 77745322111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10090403401 + 1031951376 = 100451^2 + 32124^2 .

It is a cyclic number.

It is not a de Polignac number, because 11122354777 - 2³ = 11122354769 is a prime.

It is not a weakly prime, because it can be changed into another prime (11122324777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561177388 + 5561177389.

It is an arithmetic number, because the mean of its divisors is an integer number (5561177389).

Almost surely, 2^11122354777 is an apocalyptic number.

It is an amenable number.

11122354777 is a deficient number, since it is larger than the sum of its proper divisors (1).

11122354777 is an equidigital number, since it uses as much as digits as its factorization.

11122354777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82320, while the sum is 40.

Adding to 11122354777 its reverse (77745322111), we get a palindrome (88867676888).

The spelling of 11122354777 in words is "eleven billion, one hundred twenty-two million, three hundred fifty-four thousand, seven hundred seventy-seven".