211100211021011 has 32 divisors (see below), whose sum is σ = 230754963774720. Its totient is φ = 191957316130944.

The previous prime is 211100211020989. The next prime is 211100211021023. The reversal of 211100211021011 is 110120112001112.

It is a de Polignac number, because none of the positive numbers 2^k-211100211021011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211100211023011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 177053720 + ... + 178242026.

It is an arithmetic number, because the mean of its divisors is an integer number (7211092617960).

Almost surely, 2^{211100211021011} is an apocalyptic number.

211100211021011 is a deficient number, since it is larger than the sum of its proper divisors (19654752753709).

211100211021011 is a wasteful number, since it uses less digits than its factorization.

211100211021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189155.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 211100211021011 its reverse (110120112001112), we get a palindrome (321220323022123).

The spelling of 211100211021011 in words is "two hundred eleven trillion, one hundred billion, two hundred eleven million, twenty-one thousand, eleven".