216243022 has 8 divisors (see below), whose sum is σ = 333131256. Its totient is φ = 105199272.

The previous prime is 216243019. The next prime is 216243031. The reversal of 216243022 is 220342612.

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

It is a super-2 number, since 2×216243022² = 93522089127384968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 216242984 and 216243002.

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, 1461028 + ... + 1461175.

It is an arithmetic number, because the mean of its divisors is an integer number (41641407).

Almost surely, 2^216243022 is an apocalyptic number.

216243022 is a deficient number, since it is larger than the sum of its proper divisors (116888234).

216243022 is a wasteful number, since it uses less digits than its factorization.

216243022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2922242.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 216243022 is about 14705.2039088208. The cubic root of 216243022 is about 600.2249360328.

Adding to 216243022 its reverse (220342612), we get a palindrome (436585634).

The spelling of 216243022 in words is "two hundred sixteen million, two hundred forty-three thousand, twenty-two".