1218113822 has 16 divisors (see below), whose sum is σ = 1836712800. Its totient is φ = 605885280.

The previous prime is 1218113803. The next prime is 1218113837. The reversal of 1218113822 is 2283118121.

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, 325679 + ... + 329397.

It is an arithmetic number, because the mean of its divisors is an integer number (114794550).

Almost surely, 2^1218113822 is an apocalyptic number.

1218113822 is a deficient number, since it is larger than the sum of its proper divisors (618598978).

1218113822 is a wasteful number, since it uses less digits than its factorization.

1218113822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4531.

The product of its digits is 1536, while the sum is 29.

The square root of 1218113822 is about 34901.4873895082. The cubic root of 1218113822 is about 1067.9787801991.

The spelling of 1218113822 in words is "one billion, two hundred eighteen million, one hundred thirteen thousand, eight hundred twenty-two".