211010001011 has 4 divisors (see below), whose sum is σ = 211094306352. Its totient is φ = 210925695672.

The previous prime is 211010000989. The next prime is 211010001019. The reversal of 211010001011 is 110100010112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211010001011 - 2³⁴ = 193830131827 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211010001011.

It is not an unprimeable number, because it can be changed into a prime (211010001019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42148916 + ... + 42153921.

It is an arithmetic number, because the mean of its divisors is an integer number (52773576588).

Almost surely, 2^211010001011 is an apocalyptic number.

211010001011 is a deficient number, since it is larger than the sum of its proper divisors (84305341).

211010001011 is an equidigital number, since it uses as much as digits as its factorization.

211010001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84305340.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 211010001011 its reverse (110100010112), we get a palindrome (321110011123).

It can be divided in two parts, 2 and 11010001011, that multiplied together give a palindrome (22020002022).

The spelling of 211010001011 in words is "two hundred eleven billion, ten million, one thousand, eleven".