1114121209181 has 2 divisors, whose sum is σ = 1114121209182. Its totient is φ = 1114121209180.

The previous prime is 1114121209177. The next prime is 1114121209183. The reversal of 1114121209181 is 1819021214111.

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., 610014109156 + 504107100025 = 781034^2 + 710005^2 .

It is a cyclic number.

It is not a de Polignac number, because 1114121209181 - 2² = 1114121209177 is a prime.

It is a super-2 number, since 2×1114121209181² (a number of 25 digits) contains 22 as substring.

Together with 1114121209183, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1114121209183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557060604590 + 557060604591.

It is an arithmetic number, because the mean of its divisors is an integer number (557060604591).

Almost surely, 2^{1114121209181} is an apocalyptic number.

It is an amenable number.

1114121209181 is a deficient number, since it is larger than the sum of its proper divisors (1).

1114121209181 is an equidigital number, since it uses as much as digits as its factorization.

1114121209181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 32.

The spelling of 1114121209181 in words is "one trillion, one hundred fourteen billion, one hundred twenty-one million, two hundred nine thousand, one hundred eighty-one".