11001111001012 has 24 divisors (see below), whose sum is σ = 21019182129792. Its totient is φ = 4996442827200.

The previous prime is 11001111000991. The next prime is 11001111001019. The reversal of 11001111001012 is 21010011110011.

It is a self number, because there is not a number n which added to its sum of digits gives 11001111001012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001111001019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101499553 + ... + 101607880.

It is an arithmetic number, because the mean of its divisors is an integer number (875799255408).

Almost surely, 2^{11001111001012} is an apocalyptic number.

It is an amenable number.

11001111001012 is a deficient number, since it is larger than the sum of its proper divisors (10018071128780).

11001111001012 is a wasteful number, since it uses less digits than its factorization.

11001111001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203108679 (or 203108677 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 11001111001012 its reverse (21010011110011), we get a palindrome (32011122111023).

The spelling of 11001111001012 in words is "eleven trillion, one billion, one hundred eleven million, one thousand, twelve".