11228738812 has 12 divisors (see below), whose sum is σ = 19651985640. Its totient is φ = 5613885776.

The previous prime is 11228738809. The next prime is 11228738827. The reversal of 11228738812 is 21883782211.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 65887 + ... + 163702.

It is an arithmetic number, because the mean of its divisors is an integer number (1637665470).

Almost surely, 2^11228738812 is an apocalyptic number.

It is an amenable number.

11228738812 is a deficient number, since it is larger than the sum of its proper divisors (8423246828).

11228738812 is a wasteful number, since it uses less digits than its factorization.

11228738812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241820 (or 241818 counting only the distinct ones).

The product of its digits is 86016, while the sum is 43.

The spelling of 11228738812 in words is "eleven billion, two hundred twenty-eight million, seven hundred thirty-eight thousand, eight hundred twelve".