2101011202111 has 2 divisors, whose sum is σ = 2101011202112. Its totient is φ = 2101011202110.

The previous prime is 2101011202099. The next prime is 2101011202139. The reversal of 2101011202111 is 1112021101012.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2101011202111 - 2⁵ = 2101011202079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2101011202091 and 2101011202100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101011202711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050505601055 + 1050505601056.

It is an arithmetic number, because the mean of its divisors is an integer number (1050505601056).

Almost surely, 2^{2101011202111} is an apocalyptic number.

2101011202111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101011202111 is an equidigital number, since it uses as much as digits as its factorization.

2101011202111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 2101011202111 its reverse (1112021101012), we get a palindrome (3213032303123).

The spelling of 2101011202111 in words is "two trillion, one hundred one billion, eleven million, two hundred two thousand, one hundred eleven".