211011102011 has 16 divisors (see below), whose sum is σ = 215687861760. Its totient is φ = 206382116160.

The previous prime is 211011101989. The next prime is 211011102017. The reversal of 211011102011 is 110201110112.

It is a cyclic number.

It is not a de Polignac number, because 211011102011 - 2³⁰ = 209937360187 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211011101983 and 211011102001.

It is not an unprimeable number, because it can be changed into a prime (211011102017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10272431 + ... + 10292951.

It is an arithmetic number, because the mean of its divisors is an integer number (13480491360).

Almost surely, 2^211011102011 is an apocalyptic number.

211011102011 is a deficient number, since it is larger than the sum of its proper divisors (4676759749).

211011102011 is a wasteful number, since it uses less digits than its factorization.

211011102011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21674.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 211011102011 its reverse (110201110112), we get a palindrome (321212212123).

The spelling of 211011102011 in words is "two hundred eleven billion, eleven million, one hundred two thousand, eleven".