1211100116033 has 2 divisors, whose sum is σ = 1211100116034. Its totient is φ = 1211100116032.

The previous prime is 1211100115997. The next prime is 1211100116059. The reversal of 1211100116033 is 3306110011121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1193999846209 + 17100269824 = 1092703^2 + 130768^2 .

It is a cyclic number.

It is not a de Polignac number, because 1211100116033 - 2¹⁰ = 1211100115009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1211100115996 and 1211100116014.

It is not a weakly prime, because it can be changed into another prime (1211100116533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605550058016 + 605550058017.

It is an arithmetic number, because the mean of its divisors is an integer number (605550058017).

Almost surely, 2^{1211100116033} is an apocalyptic number.

It is an amenable number.

1211100116033 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211100116033 is an equidigital number, since it uses as much as digits as its factorization.

1211100116033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 1211100116033 its reverse (3306110011121), we get a palindrome (4517210127154).

The spelling of 1211100116033 in words is "one trillion, two hundred eleven billion, one hundred million, one hundred sixteen thousand, thirty-three".