11021011012 has 96 divisors (see below), whose sum is σ = 22048879104. Its totient is φ = 4776345600.

The previous prime is 11021011007. The next prime is 11021011019. The reversal of 11021011012 is 21011012011.

It is a self number, because there is not a number n which added to its sum of digits gives 11021011012.

It is not an unprimeable number, because it can be changed into a prime (11021011019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21153312 + ... + 21153832.

It is an arithmetic number, because the mean of its divisors is an integer number (229675824).

Almost surely, 2^11021011012 is an apocalyptic number.

It is an amenable number.

11021011012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

11021011012 is a wasteful number, since it uses less digits than its factorization.

11021011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829 (or 827 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 11021011012 its reverse (21011012011), we get a palindrome (32032023023).

Subtracting 11021011012 from its reverse (21011012011), we obtain a palindrome (9990000999).

The spelling of 11021011012 in words is "eleven billion, twenty-one million, eleven thousand, twelve".