11212119988 has 36 divisors (see below), whose sum is σ = 20023930080. Its totient is φ = 5493240784.

The previous prime is 11212119979. The next prime is 11212120033. The reversal of 11212119988 is 88991121211.

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 11 ways as a sum of consecutive naturals, for example, 4997595 + ... + 4999837.

It is an arithmetic number, because the mean of its divisors is an integer number (556220280).

Almost surely, 2^11212119988 is an apocalyptic number.

It is an amenable number.

11212119988 is a deficient number, since it is larger than the sum of its proper divisors (8811810092).

11212119988 is a wasteful number, since it uses less digits than its factorization.

11212119988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2724 (or 2663 counting only the distinct ones).

The product of its digits is 20736, while the sum is 43.

The spelling of 11212119988 in words is "eleven billion, two hundred twelve million, one hundred nineteen thousand, nine hundred eighty-eight".