216442022 has 8 divisors (see below), whose sum is σ = 335858400. Its totient is φ = 104489224.

The previous prime is 216442021. The next prime is 216442027. The reversal of 216442022 is 220244612.

216442022 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216442021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1865822 + ... + 1865937.

It is an arithmetic number, because the mean of its divisors is an integer number (41982300).

Almost surely, 2^216442022 is an apocalyptic number.

216442022 is a deficient number, since it is larger than the sum of its proper divisors (119416378).

216442022 is a wasteful number, since it uses less digits than its factorization.

216442022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3731790.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 216442022 is about 14711.9686650020. The cubic root of 216442022 is about 600.4090007636.

Adding to 216442022 its reverse (220244612), we get a palindrome (436686634).

The spelling of 216442022 in words is "two hundred sixteen million, four hundred forty-two thousand, twenty-two".