9801220000111 has 2 divisors, whose sum is σ = 9801220000112. Its totient is φ = 9801220000110.

The previous prime is 9801220000067. The next prime is 9801220000153. The reversal of 9801220000111 is 1110000221089.

It is a strong prime.

It is an emirp because it is prime and its reverse (1110000221089) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9801220000111 - 2³¹ = 9799072516463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9801220000171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4900610000055 + 4900610000056.

It is an arithmetic number, because the mean of its divisors is an integer number (4900610000056).

Almost surely, 2^{9801220000111} is an apocalyptic number.

9801220000111 is a deficient number, since it is larger than the sum of its proper divisors (1).

9801220000111 is an equidigital number, since it uses as much as digits as its factorization.

9801220000111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 25.

The spelling of 9801220000111 in words is "nine trillion, eight hundred one billion, two hundred twenty million, one hundred eleven", and thus it is an aban number.