12118227838 has 8 divisors (see below), whose sum is σ = 18180781560. Its totient is φ = 6057967320.

The previous prime is 12118227817. The next prime is 12118227841. The reversal of 12118227838 is 83872281121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12118227794 and 12118227803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 560028 + ... + 581263.

It is an arithmetic number, because the mean of its divisors is an integer number (2272597695).

Almost surely, 2^12118227838 is an apocalyptic number.

12118227838 is a deficient number, since it is larger than the sum of its proper divisors (6062553722).

12118227838 is a wasteful number, since it uses less digits than its factorization.

12118227838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146602.

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

The spelling of 12118227838 in words is "twelve billion, one hundred eighteen million, two hundred twenty-seven thousand, eight hundred thirty-eight".