2101201221011 has 2 divisors, whose sum is σ = 2101201221012. Its totient is φ = 2101201221010.

The previous prime is 2101201221001. The next prime is 2101201221061. The reversal of 2101201221011 is 1101221021012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2101201221011 - 2³⁰ = 2100127479187 is a prime.

It is not a weakly prime, because it can be changed into another prime (2101201221001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050600610505 + 1050600610506.

It is an arithmetic number, because the mean of its divisors is an integer number (1050600610506).

Almost surely, 2^{2101201221011} is an apocalyptic number.

2101201221011 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101201221011 is an equidigital number, since it uses as much as digits as its factorization.

2101201221011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2101201221011 its reverse (1101221021012), we get a palindrome (3202422242023).

The spelling of 2101201221011 in words is "two trillion, one hundred one billion, two hundred one million, two hundred twenty-one thousand, eleven".