12216150 has 48 divisors (see below), whose sum is σ = 33666000. Its totient is φ = 3257280.

The previous prime is 12216137. The next prime is 12216161. The reversal of 12216150 is 5161221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3175 + ... + 5874.

It is an arithmetic number, because the mean of its divisors is an integer number (701375).

Almost surely, 2^12216150 is an apocalyptic number.

12216150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12216150 is an abundant number, since it is smaller than the sum of its proper divisors (21449850).

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

12216150 is a wasteful number, since it uses less digits than its factorization.

12216150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9070 (or 9059 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 12216150 is about 3495.1609405005. The cubic root of 12216150 is about 230.3092877490.

Adding to 12216150 its reverse (5161221), we get a palindrome (17377371).

The spelling of 12216150 in words is "twelve million, two hundred sixteen thousand, one hundred fifty".