108216012 has 24 divisors (see below), whose sum is σ = 263483136. Its totient is φ = 34503568.

The previous prime is 108215957. The next prime is 108216019. The reversal of 108216012 is 210612801.

It is a self number, because there is not a number n which added to its sum of digits gives 108216012.

It is not an unprimeable number, because it can be changed into a prime (108216019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195768 + ... + 196319.

It is an arithmetic number, because the mean of its divisors is an integer number (10978464).

Almost surely, 2^108216012 is an apocalyptic number.

108216012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

108216012 is an abundant number, since it is smaller than the sum of its proper divisors (155267124).

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

108216012 is a wasteful number, since it uses less digits than its factorization.

108216012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392117 (or 392115 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 108216012 is about 10402.6925360697. The cubic root of 108216012 is about 476.5376019965.

Adding to 108216012 its reverse (210612801), we get a palindrome (318828813).

The spelling of 108216012 in words is "one hundred eight million, two hundred sixteen thousand, twelve".