1100111212127 has 2 divisors, whose sum is σ = 1100111212128. Its totient is φ = 1100111212126.

The previous prime is 1100111212121. The next prime is 1100111212153. The reversal of 1100111212127 is 7212121110011.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1100111212127 - 2³⁴ = 1082931342943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1100111212099 and 1100111212108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100111212121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550055606063 + 550055606064.

It is an arithmetic number, because the mean of its divisors is an integer number (550055606064).

Almost surely, 2^{1100111212127} is an apocalyptic number.

1100111212127 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100111212127 is an equidigital number, since it uses as much as digits as its factorization.

1100111212127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 20.

Adding to 1100111212127 its reverse (7212121110011), we get a palindrome (8312232322138).

The spelling of 1100111212127 in words is "one trillion, one hundred billion, one hundred eleven million, two hundred twelve thousand, one hundred twenty-seven".