1218168422 has 8 divisors (see below), whose sum is σ = 1934738136. Its totient is φ = 573255712.

The previous prime is 1218168409. The next prime is 1218168437. The reversal of 1218168422 is 2248618121.

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

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, 17914208 + ... + 17914275.

It is an arithmetic number, because the mean of its divisors is an integer number (241842267).

Almost surely, 2^1218168422 is an apocalyptic number.

1218168422 is a deficient number, since it is larger than the sum of its proper divisors (716569714).

1218168422 is a wasteful number, since it uses less digits than its factorization.

1218168422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35828502.

The product of its digits is 12288, while the sum is 35.

The square root of 1218168422 is about 34902.2695823638. The cubic root of 1218168422 is about 1067.9947367731.

The spelling of 1218168422 in words is "one billion, two hundred eighteen million, one hundred sixty-eight thousand, four hundred twenty-two".