120111101120281 has 2 divisors, whose sum is σ = 120111101120282. Its totient is φ = 120111101120280.

The previous prime is 120111101120111. The next prime is 120111101120287. The reversal of 120111101120281 is 182021101111021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90651173830281 + 29459927290000 = 9521091^2 + 5427700^2 .

It is a cyclic number.

It is not a de Polignac number, because 120111101120281 - 2²⁹ = 120110564249369 is a prime.

It is a super-2 number, since 2×120111101120281² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (120111101120287) 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, 60055550560140 + 60055550560141.

It is an arithmetic number, because the mean of its divisors is an integer number (60055550560141).

Almost surely, 2^{120111101120281} is an apocalyptic number.

It is an amenable number.

120111101120281 is a deficient number, since it is larger than the sum of its proper divisors (1).

120111101120281 is an equidigital number, since it uses as much as digits as its factorization.

120111101120281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 22.

The spelling of 120111101120281 in words is "one hundred twenty trillion, one hundred eleven billion, one hundred one million, one hundred twenty thousand, two hundred eighty-one".