216124122 has 8 divisors (see below), whose sum is σ = 432248256. Its totient is φ = 72041372.

The previous prime is 216124109. The next prime is 216124127. The reversal of 216124122 is 221421612.

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

216124122 is an admirable number.

It is a super-2 number, since 2×216124122² = 93419272220541768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (216124127) 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, 18010338 + ... + 18010349.

It is an arithmetic number, because the mean of its divisors is an integer number (54031032).

Almost surely, 2^216124122 is an apocalyptic number.

216124122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216124122 is a wasteful number, since it uses less digits than its factorization.

216124122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36020692.

The product of its digits is 384, while the sum is 21.

The square root of 216124122 is about 14701.1605664315. The cubic root of 216124122 is about 600.1149057708.

Adding to 216124122 its reverse (221421612), we get a palindrome (437545734).

The spelling of 216124122 in words is "two hundred sixteen million, one hundred twenty-four thousand, one hundred twenty-two".