216237122 has 8 divisors (see below), whose sum is σ = 338458176. Its totient is φ = 103417732.

The previous prime is 216237113. The next prime is 216237149. The reversal of 216237122 is 221732612.

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 = 216237091 and 216237100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2350358 + ... + 2350449.

It is an arithmetic number, because the mean of its divisors is an integer number (42307272).

Almost surely, 2^216237122 is an apocalyptic number.

216237122 is a deficient number, since it is larger than the sum of its proper divisors (122221054).

216237122 is a wasteful number, since it uses less digits than its factorization.

216237122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4700832.

The product of its digits is 2016, while the sum is 26.

The square root of 216237122 is about 14705.0032981975. The cubic root of 216237122 is about 600.2194771139.

Adding to 216237122 its reverse (221732612), we get a palindrome (437969734).

The spelling of 216237122 in words is "two hundred sixteen million, two hundred thirty-seven thousand, one hundred twenty-two".