1222162818 has 8 divisors (see below), whose sum is σ = 2444325648. Its totient is φ = 407387604.

The previous prime is 1222162807. The next prime is 1222162819. The reversal of 1222162818 is 8182612221.

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

1222162818 is an admirable number.

It is a super-2 number, since 2×1222162818² = 2987363907403402248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1222162819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101846896 + ... + 101846907.

It is an arithmetic number, because the mean of its divisors is an integer number (305540706).

Almost surely, 2^1222162818 is an apocalyptic number.

1222162818 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222162818 is a wasteful number, since it uses less digits than its factorization.

1222162818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203693808.

The product of its digits is 6144, while the sum is 33.

The square root of 1222162818 is about 34959.4453331285. The cubic root of 1222162818 is about 1069.1607878014.

The spelling of 1222162818 in words is "one billion, two hundred twenty-two million, one hundred sixty-two thousand, eight hundred eighteen".