216371222173612 has 48 divisors (see below), whose sum is σ = 418750411347072. Its totient is φ = 96998758001280.

The previous prime is 216371222173591. The next prime is 216371222173643.

216371222173612 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67698343 + ... + 70822369.

It is an arithmetic number, because the mean of its divisors is an integer number (8723966903064).

Almost surely, 2^{216371222173612} is an apocalyptic number.

216371222173612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

216371222173612 is a deficient number, since it is larger than the sum of its proper divisors (202379189173460).

216371222173612 is a wasteful number, since it uses less digits than its factorization.

216371222173612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3145678 (or 3145676 counting only the distinct ones).

The product of its digits is 508032, while the sum is 46.

The spelling of 216371222173612 in words is "two hundred sixteen trillion, three hundred seventy-one billion, two hundred twenty-two million, one hundred seventy-three thousand, six hundred twelve".