216122512 has 40 divisors (see below), whose sum is σ = 431143040. Its totient is φ = 104906880.

The previous prime is 216122461. The next prime is 216122519. The reversal of 216122512 is 215221612.

It is not an unprimeable number, because it can be changed into a prime (216122519) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 75703 + ... + 78505.

It is an arithmetic number, because the mean of its divisors is an integer number (10778576).

Almost surely, 2^216122512 is an apocalyptic number.

It is an amenable number.

216122512 is a deficient number, since it is larger than the sum of its proper divisors (215020528).

216122512 is a wasteful number, since it uses less digits than its factorization.

216122512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2951 (or 2945 counting only the distinct ones).

The product of its digits is 480, while the sum is 22.

The square root of 216122512 is about 14701.1058087479. The cubic root of 216122512 is about 600.1134155972.

The spelling of 216122512 in words is "two hundred sixteen million, one hundred twenty-two thousand, five hundred twelve".