11000001221012 has 24 divisors (see below), whose sum is σ = 19700636709600. Its totient is φ = 5371286318496.

The previous prime is 11000001220961. The next prime is 11000001221039. The reversal of 11000001221012 is 21012210000011.

It is a junction number, because it is equal to n+sod(n) for n = 11000001220984 and 11000001221002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3656687 + ... + 5947382.

It is an arithmetic number, because the mean of its divisors is an integer number (820859862900).

Almost surely, 2^{11000001221012} is an apocalyptic number.

It is an amenable number.

11000001221012 is a deficient number, since it is larger than the sum of its proper divisors (8700635488588).

11000001221012 is a wasteful number, since it uses less digits than its factorization.

11000001221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9610775 (or 9610773 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11000001221012 its reverse (21012210000011), we get a palindrome (32012211221023).

The spelling of 11000001221012 in words is "eleven trillion, one million, two hundred twenty-one thousand, twelve".