1102001112181 has 2 divisors, whose sum is σ = 1102001112182. Its totient is φ = 1102001112180.

The previous prime is 1102001112167. The next prime is 1102001112211. The reversal of 1102001112181 is 1812111002011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1001490555025 + 100510557156 = 1000745^2 + 317034^2 .

It is a cyclic number.

It is not a de Polignac number, because 1102001112181 - 2⁷ = 1102001112053 is a prime.

It is a super-2 number, since 2×1102001112181² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1102001118181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551000556090 + 551000556091.

It is an arithmetic number, because the mean of its divisors is an integer number (551000556091).

Almost surely, 2^{1102001112181} is an apocalyptic number.

It is an amenable number.

1102001112181 is a deficient number, since it is larger than the sum of its proper divisors (1).

1102001112181 is an equidigital number, since it uses as much as digits as its factorization.

1102001112181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 1102001112181 its reverse (1812111002011), we get a palindrome (2914112114192).

The spelling of 1102001112181 in words is "one trillion, one hundred two billion, one million, one hundred twelve thousand, one hundred eighty-one".