111121010221093 has 2 divisors, whose sum is σ = 111121010221094. Its totient is φ = 111121010221092.

The previous prime is 111121010220977. The next prime is 111121010221121. The reversal of 111121010221093 is 390122010121111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72579784468129 + 38541225752964 = 8519377^2 + 6208158^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111121010221093 is a prime.

It is a super-2 number, since 2×111121010221093² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111121010521093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55560505110546 + 55560505110547.

It is an arithmetic number, because the mean of its divisors is an integer number (55560505110547).

Almost surely, 2^{111121010221093} is an apocalyptic number.

It is an amenable number.

111121010221093 is a deficient number, since it is larger than the sum of its proper divisors (1).

111121010221093 is an equidigital number, since it uses as much as digits as its factorization.

111121010221093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 25.

The spelling of 111121010221093 in words is "one hundred eleven trillion, one hundred twenty-one billion, ten million, two hundred twenty-one thousand, ninety-three".