111022100119981 has 2 divisors, whose sum is σ = 111022100119982. Its totient is φ = 111022100119980.

The previous prime is 111022100119933. The next prime is 111022100120123. The reversal of 111022100119981 is 189911001220111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66489901289956 + 44532198830025 = 8154134^2 + 6673245^2 .

It is a cyclic number.

It is not a de Polignac number, because 111022100119981 - 2¹³ = 111022100111789 is a prime.

It is a super-2 number, since 2×111022100119981² (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 111022100119981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111022100119901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55511050059990 + 55511050059991.

It is an arithmetic number, because the mean of its divisors is an integer number (55511050059991).

Almost surely, 2^{111022100119981} is an apocalyptic number.

It is an amenable number.

111022100119981 is a deficient number, since it is larger than the sum of its proper divisors (1).

111022100119981 is an equidigital number, since it uses as much as digits as its factorization.

111022100119981 is an evil number, because the sum of its binary digits is even.

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

The spelling of 111022100119981 in words is "one hundred eleven trillion, twenty-two billion, one hundred million, one hundred nineteen thousand, nine hundred eighty-one".