11211112004 has 6 divisors (see below), whose sum is σ = 19619446014. Its totient is φ = 5605556000.

The previous prime is 11211111997. The next prime is 11211112057. The reversal of 11211112004 is 40021111211.

It can be written as a sum of positive squares in only one way, i.e., 9870819904 + 1340292100 = 99352^2 + 36610^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11211112004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1401388997 + ... + 1401389004.

It is an arithmetic number, because the mean of its divisors is an integer number (3269907669).

Almost surely, 2^11211112004 is an apocalyptic number.

It is an amenable number.

11211112004 is a deficient number, since it is larger than the sum of its proper divisors (8408334010).

11211112004 is a wasteful number, since it uses less digits than its factorization.

11211112004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2802778005 (or 2802778003 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11211112004 its reverse (40021111211), we get a palindrome (51232223215).

The spelling of 11211112004 in words is "eleven billion, two hundred eleven million, one hundred twelve thousand, four".