2021112110011 has 2 divisors, whose sum is σ = 2021112110012. Its totient is φ = 2021112110010.

The previous prime is 2021112109981. The next prime is 2021112110021. The reversal of 2021112110011 is 1100112111202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2021112110011 - 2²⁹ = 2020575239099 is a prime.

It is a super-2 number, since 2×2021112110011² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2021112109973 and 2021112110000.

It is not a weakly prime, because it can be changed into another prime (2021112110021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010556055005 + 1010556055006.

It is an arithmetic number, because the mean of its divisors is an integer number (1010556055006).

Almost surely, 2^{2021112110011} is an apocalyptic number.

2021112110011 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021112110011 is an equidigital number, since it uses as much as digits as its factorization.

2021112110011 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 2021112110011 its reverse (1100112111202), we get a palindrome (3121224221213).

The spelling of 2021112110011 in words is "two trillion, twenty-one billion, one hundred twelve million, one hundred ten thousand, eleven".