2110121101811 has 2 divisors, whose sum is σ = 2110121101812. Its totient is φ = 2110121101810.

The previous prime is 2110121101769. The next prime is 2110121101843. The reversal of 2110121101811 is 1181011210112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2110121101811 is a prime.

It is a super-2 number, since 2×2110121101811² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2110121100811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055060550905 + 1055060550906.

It is an arithmetic number, because the mean of its divisors is an integer number (1055060550906).

Almost surely, 2^{2110121101811} is an apocalyptic number.

2110121101811 is a deficient number, since it is larger than the sum of its proper divisors (1).

2110121101811 is an equidigital number, since it uses as much as digits as its factorization.

2110121101811 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 20.

Adding to 2110121101811 its reverse (1181011210112), we get a palindrome (3291132311923).

The spelling of 2110121101811 in words is "two trillion, one hundred ten billion, one hundred twenty-one million, one hundred one thousand, eight hundred eleven".