1222162637818 has 8 divisors (see below), whose sum is σ = 1875877537248. Its totient is φ = 596870125404.

The previous prime is 1222162637797. The next prime is 1222162637849. The reversal of 1222162637818 is 8187362612221.

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

It is a super-2 number, since 2×1222162637818² (a number of 25 digits) contains 22 as substring.

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, 7105596646 + ... + 7105596817.

It is an arithmetic number, because the mean of its divisors is an integer number (234484692156).

Almost surely, 2^{1222162637818} is an apocalyptic number.

1222162637818 is a deficient number, since it is larger than the sum of its proper divisors (653714899430).

1222162637818 is a wasteful number, since it uses less digits than its factorization.

1222162637818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14211193508.

The product of its digits is 774144, while the sum is 49.

The spelling of 1222162637818 in words is "one trillion, two hundred twenty-two billion, one hundred sixty-two million, six hundred thirty-seven thousand, eight hundred eighteen".