110120211109981 has 2 divisors, whose sum is σ = 110120211109982. Its totient is φ = 110120211109980.

The previous prime is 110120211109933. The next prime is 110120211110009. The reversal of 110120211109981 is 189901112021011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87128521758756 + 22991689351225 = 9334266^2 + 4794965^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110120211109981 is a prime.

It is a super-2 number, since 2×110120211109981² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 110120211109981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110120211109081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55060105554990 + 55060105554991.

It is an arithmetic number, because the mean of its divisors is an integer number (55060105554991).

Almost surely, 2^{110120211109981} is an apocalyptic number.

It is an amenable number.

110120211109981 is a deficient number, since it is larger than the sum of its proper divisors (1).

110120211109981 is an equidigital number, since it uses as much as digits as its factorization.

110120211109981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 37.

The spelling of 110120211109981 in words is "one hundred ten trillion, one hundred twenty billion, two hundred eleven million, one hundred nine thousand, nine hundred eighty-one".