1201002011101 has 2 divisors, whose sum is σ = 1201002011102. Its totient is φ = 1201002011100.

The previous prime is 1201002011071. The next prime is 1201002011149. The reversal of 1201002011101 is 1011102001021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1056773720025 + 144228291076 = 1027995^2 + 379774^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201002011101 - 2⁷ = 1201002010973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201002011171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600501005550 + 600501005551.

It is an arithmetic number, because the mean of its divisors is an integer number (600501005551).

Almost surely, 2^{1201002011101} is an apocalyptic number.

It is an amenable number.

1201002011101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201002011101 is an equidigital number, since it uses as much as digits as its factorization.

1201002011101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1201002011101 its reverse (1011102001021), we get a palindrome (2212104012122).

The spelling of 1201002011101 in words is "one trillion, two hundred one billion, two million, eleven thousand, one hundred one".