1211110202041 has 2 divisors, whose sum is σ = 1211110202042. Its totient is φ = 1211110202040.

The previous prime is 1211110201993. The next prime is 1211110202051. The reversal of 1211110202041 is 1402020111121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 948987705600 + 262122496441 = 974160^2 + 511979^2 .

It is a cyclic number.

It is not a de Polignac number, because 1211110202041 - 2⁷ = 1211110201913 is a prime.

It is not a weakly prime, because it can be changed into another prime (1211110202051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605555101020 + 605555101021.

It is an arithmetic number, because the mean of its divisors is an integer number (605555101021).

Almost surely, 2^{1211110202041} is an apocalyptic number.

It is an amenable number.

1211110202041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211110202041 is an equidigital number, since it uses as much as digits as its factorization.

1211110202041 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 16.

Adding to 1211110202041 its reverse (1402020111121), we get a palindrome (2613130313162).

The spelling of 1211110202041 in words is "one trillion, two hundred eleven billion, one hundred ten million, two hundred two thousand, forty-one".