110001110999921 has 2 divisors, whose sum is σ = 110001110999922. Its totient is φ = 110001110999920.

The previous prime is 110001110999869. The next prime is 110001110999939. The reversal of 110001110999921 is 129999011100011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84590327290000 + 25410783709921 = 9197300^2 + 5040911^2 .

It is an emirp because it is prime and its reverse (129999011100011) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110001110999921 is a prime.

It is not a weakly prime, because it can be changed into another prime (110001110969921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55000555499960 + 55000555499961.

It is an arithmetic number, because the mean of its divisors is an integer number (55000555499961).

Almost surely, 2^{110001110999921} is an apocalyptic number.

It is an amenable number.

110001110999921 is a deficient number, since it is larger than the sum of its proper divisors (1).

110001110999921 is an equidigital number, since it uses as much as digits as its factorization.

110001110999921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13122, while the sum is 44.

The spelling of 110001110999921 in words is "one hundred ten trillion, one billion, one hundred ten million, nine hundred ninety-nine thousand, nine hundred twenty-one".