216221044201418 has 8 divisors (see below), whose sum is σ = 324335281744800. Its totient is φ = 108109283619820.

The previous prime is 216221044201397. The next prime is 216221044201439. The reversal of 216221044201418 is 814102440122612.

It is an interprime number because it is at equal distance from previous prime (216221044201397) and next prime (216221044201439).

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

It is a Curzon 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, 619022198 + ... + 619371393.

It is an arithmetic number, because the mean of its divisors is an integer number (40541910218100).

Almost surely, 2^{216221044201418} is an apocalyptic number.

216221044201418 is a deficient number, since it is larger than the sum of its proper divisors (108114237543382).

216221044201418 is a wasteful number, since it uses less digits than its factorization.

216221044201418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238480892.

The product of its (nonzero) digits is 49152, while the sum is 38.

The spelling of 216221044201418 in words is "two hundred sixteen trillion, two hundred twenty-one billion, forty-four million, two hundred one thousand, four hundred eighteen".