1012012110181 has 2 divisors, whose sum is σ = 1012012110182. Its totient is φ = 1012012110180.

The previous prime is 1012012110169. The next prime is 1012012110269. The reversal of 1012012110181 is 1810112102101.

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., 899716749156 + 112295361025 = 948534^2 + 335105^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012012110181 is a prime.

It is a super-2 number, since 2×1012012110181² (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 (1012012110101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506006055090 + 506006055091.

It is an arithmetic number, because the mean of its divisors is an integer number (506006055091).

Almost surely, 2^{1012012110181} is an apocalyptic number.

It is an amenable number.

1012012110181 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012012110181 is an equidigital number, since it uses as much as digits as its factorization.

1012012110181 is an odious number, because the sum of its binary digits is odd.

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

Adding to 1012012110181 its reverse (1810112102101), we get a palindrome (2822124212282).

The spelling of 1012012110181 in words is "one trillion, twelve billion, twelve million, one hundred ten thousand, one hundred eighty-one".