1220111101133 has 2 divisors, whose sum is σ = 1220111101134. Its totient is φ = 1220111101132.

The previous prime is 1220111101091. The next prime is 1220111101141. The reversal of 1220111101133 is 3311011110221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1172971309444 + 47139791689 = 1083038^2 + 217117^2 .

It is an emirp because it is prime and its reverse (3311011110221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1220111101133 - 2¹⁴ = 1220111084749 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220111101163) 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, 610055550566 + 610055550567.

It is an arithmetic number, because the mean of its divisors is an integer number (610055550567).

Almost surely, 2^{1220111101133} is an apocalyptic number.

It is an amenable number.

1220111101133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220111101133 is an equidigital number, since it uses as much as digits as its factorization.

1220111101133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 1220111101133 its reverse (3311011110221), we get a palindrome (4531122211354).

The spelling of 1220111101133 in words is "one trillion, two hundred twenty billion, one hundred eleven million, one hundred one thousand, one hundred thirty-three".