11112211222127 has 2 divisors, whose sum is σ = 11112211222128. Its totient is φ = 11112211222126.

The previous prime is 11112211222069. The next prime is 11112211222159. The reversal of 11112211222127 is 72122211221111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11112211222127 - 2⁸ = 11112211221871 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11112211222096 and 11112211222105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11112211222187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5556105611063 + 5556105611064.

It is an arithmetic number, because the mean of its divisors is an integer number (5556105611064).

Almost surely, 2^{11112211222127} is an apocalyptic number.

11112211222127 is a deficient number, since it is larger than the sum of its proper divisors (1).

11112211222127 is an equidigital number, since it uses as much as digits as its factorization.

11112211222127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 448, while the sum is 26.

Adding to 11112211222127 its reverse (72122211221111), we get a palindrome (83234422443238).

The spelling of 11112211222127 in words is "eleven trillion, one hundred twelve billion, two hundred eleven million, two hundred twenty-two thousand, one hundred twenty-seven".