1011102220991 has 2 divisors, whose sum is σ = 1011102220992. Its totient is φ = 1011102220990.

The previous prime is 1011102220981. The next prime is 1011102221009. The reversal of 1011102220991 is 1990222011101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1011102220991 - 2¹⁸ = 1011101958847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011102220981) 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, 505551110495 + 505551110496.

It is an arithmetic number, because the mean of its divisors is an integer number (505551110496).

Almost surely, 2^{1011102220991} is an apocalyptic number.

1011102220991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011102220991 is an equidigital number, since it uses as much as digits as its factorization.

1011102220991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 29.

The spelling of 1011102220991 in words is "one trillion, eleven billion, one hundred two million, two hundred twenty thousand, nine hundred ninety-one".