11011221222277 has 2 divisors, whose sum is σ = 11011221222278. Its totient is φ = 11011221222276.

The previous prime is 11011221222143. The next prime is 11011221222289. The reversal of 11011221222277 is 77222212211011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8556362115876 + 2454859106401 = 2925126^2 + 1566799^2 .

It is a cyclic number.

It is not a de Polignac number, because 11011221222277 - 2¹¹ = 11011221220229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11011221222877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505610611138 + 5505610611139.

It is an arithmetic number, because the mean of its divisors is an integer number (5505610611139).

Almost surely, 2^{11011221222277} is an apocalyptic number.

It is an amenable number.

11011221222277 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011221222277 is an equidigital number, since it uses as much as digits as its factorization.

11011221222277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3136, while the sum is 31.

Adding to 11011221222277 its reverse (77222212211011), we get a palindrome (88233433433288).

The spelling of 11011221222277 in words is "eleven trillion, eleven billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred seventy-seven".