1222216071218 has 16 divisors (see below), whose sum is σ = 1892496597504. Its totient is φ = 591384559680.

The previous prime is 1222216071161. The next prime is 1222216071227. The reversal of 1222216071218 is 8121706122221.

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, 4373546 + ... + 4644602.

It is an arithmetic number, because the mean of its divisors is an integer number (118281037344).

Almost surely, 2^{1222216071218} is an apocalyptic number.

1222216071218 is a deficient number, since it is larger than the sum of its proper divisors (670280526286).

1222216071218 is a wasteful number, since it uses less digits than its factorization.

1222216071218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343817.

The product of its (nonzero) digits is 10752, while the sum is 35.

The spelling of 1222216071218 in words is "one trillion, two hundred twenty-two billion, two hundred sixteen million, seventy-one thousand, two hundred eighteen".