218001214 has 8 divisors (see below), whose sum is σ = 331481520. Its totient is φ = 107507376.

The previous prime is 218001209. The next prime is 218001227. The reversal of 218001214 is 412100812.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 218001191 and 218001200.

It is a congruent 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, 746434 + ... + 746725.

It is an arithmetic number, because the mean of its divisors is an integer number (41435190).

Almost surely, 2^218001214 is an apocalyptic number.

218001214 is a deficient number, since it is larger than the sum of its proper divisors (113480306).

218001214 is a wasteful number, since it uses less digits than its factorization.

218001214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493234.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 218001214 is about 14764.8641714037. The cubic root of 218001214 is about 601.8472826670.

The spelling of 218001214 in words is "two hundred eighteen million, one thousand, two hundred fourteen".