201012100200181 has 2 divisors, whose sum is σ = 201012100200182. Its totient is φ = 201012100200180.

The previous prime is 201012100200157. The next prime is 201012100200193. The reversal of 201012100200181 is 181002001210102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192972799846225 + 8039300353956 = 13891465^2 + 2835366^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201012100200181 is a prime.

It is a super-2 number, since 2×201012100200181² (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 (201012100200581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100506050100090 + 100506050100091.

It is an arithmetic number, because the mean of its divisors is an integer number (100506050100091).

Almost surely, 2^{201012100200181} is an apocalyptic number.

It is an amenable number.

201012100200181 is a deficient number, since it is larger than the sum of its proper divisors (1).

201012100200181 is an equidigital number, since it uses as much as digits as its factorization.

201012100200181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 201012100200181 its reverse (181002001210102), we get a palindrome (382014101410283).

The spelling of 201012100200181 in words is "two hundred one trillion, twelve billion, one hundred million, two hundred thousand, one hundred eighty-one".