12108211632 has 480 divisors, whose sum is σ = 40646541312. Its totient is φ = 3326400000.

The previous prime is 12108211627. The next prime is 12108211651. The reversal of 12108211632 is 23611280121.

12108211632 is a `hidden beast` number, since 1 + 2 + 1 + 0 + 8 + 21 + 1 + 632 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 12108211596 and 12108211605.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 80186757 + ... + 80186907.

Almost surely, 2^12108211632 is an apocalyptic number.

12108211632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12108211632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20323270656).

12108211632 is an abundant number, since it is smaller than the sum of its proper divisors (28538329680).

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

12108211632 is a wasteful number, since it uses less digits than its factorization.

12108211632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

Adding to 12108211632 its reverse (23611280121), we get a palindrome (35719491753).

The spelling of 12108211632 in words is "twelve billion, one hundred eight million, two hundred eleven thousand, six hundred thirty-two".