201110021111011 has 4 divisors (see below), whose sum is σ = 202343824921672. Its totient is φ = 199876217300352.

The previous prime is 201110021110987. The next prime is 201110021111227. The reversal of 201110021111011 is 110111120011102.

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 201110021111011 - 2⁴⁷ = 60372532755683 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201110021110982 and 201110021111000.

It is not an unprimeable number, because it can be changed into a prime (201110021111611) 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, 616901905086 + ... + 616901905411.

It is an arithmetic number, because the mean of its divisors is an integer number (50585956230418).

Almost surely, 2^{201110021111011} is an apocalyptic number.

201110021111011 is a deficient number, since it is larger than the sum of its proper divisors (1233803810661).

201110021111011 is a wasteful number, since it uses less digits than its factorization.

201110021111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233803810660.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 201110021111011 its reverse (110111120011102), we get a palindrome (311221141122113).

The spelling of 201110021111011 in words is "two hundred one trillion, one hundred ten billion, twenty-one million, one hundred eleven thousand, eleven".