12216151 has 8 divisors (see below), whose sum is σ = 12783744. Its totient is φ = 11651640.

The previous prime is 12216137. The next prime is 12216161. The reversal of 12216151 is 15161221.

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

It is a cyclic number.

It is not a de Polignac number, because 12216151 - 2⁵ = 12216119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12216101) 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, 12096 + ... + 13066.

It is an arithmetic number, because the mean of its divisors is an integer number (1597968).

Almost surely, 2^12216151 is an apocalyptic number.

12216151 is a deficient number, since it is larger than the sum of its proper divisors (567593).

12216151 is an equidigital number, since it uses as much as digits as its factorization.

12216151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541.

The product of its digits is 120, while the sum is 19.

The square root of 12216151 is about 3495.1610835554. The cubic root of 12216151 is about 230.3092940333.

Adding to 12216151 its reverse (15161221), we get a palindrome (27377372).

The spelling of 12216151 in words is "twelve million, two hundred sixteen thousand, one hundred fifty-one".