216229922 has 8 divisors (see below), whose sum is σ = 324786000. Its totient is φ = 107967924.

The previous prime is 216229913. The next prime is 216229931. The reversal of 216229922 is 229922612.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (216229913) and next prime (216229931).

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

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, 71672 + ... + 74627.

It is an arithmetic number, because the mean of its divisors is an integer number (40598250).

Almost surely, 2^216229922 is an apocalyptic number.

216229922 is a deficient number, since it is larger than the sum of its proper divisors (108556078).

216229922 is a wasteful number, since it uses less digits than its factorization.

216229922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147040.

The product of its digits is 15552, while the sum is 35.

The square root of 216229922 is about 14704.7584815256. The cubic root of 216229922 is about 600.2128152479.

The spelling of 216229922 in words is "two hundred sixteen million, two hundred twenty-nine thousand, nine hundred twenty-two".