11021011011 has 16 divisors (see below), whose sum is σ = 16444892800. Its totient is φ = 7294479624.

The previous prime is 11021011007. The next prime is 11021011019. The reversal of 11021011011 is 11011012011.

It is not a de Polignac number, because 11021011011 - 2² = 11021011007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11021010984 and 11021011002.

It is not an unprimeable number, because it can be changed into a prime (11021011019) 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, 1464541 + ... + 1472046.

It is an arithmetic number, because the mean of its divisors is an integer number (1027805800).

Almost surely, 2^11021011011 is an apocalyptic number.

11021011011 is a deficient number, since it is larger than the sum of its proper divisors (5423881789).

11021011011 is a wasteful number, since it uses less digits than its factorization.

11021011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2936735 (or 2936729 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 11021011011 its reverse (11011012011), we get a palindrome (22032023022).

It can be divided in two parts, 1102101 and 1011, that multiplied together give a palindrome (1114224111).

The spelling of 11021011011 in words is "eleven billion, twenty-one million, eleven thousand, eleven".