12223151 has 4 divisors (see below), whose sum is σ = 12335400. Its totient is φ = 12110904.

The previous prime is 12223139. The next prime is 12223199. The reversal of 12223151 is 15132221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12223151 - 2⁶ = 12223087 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 (12223751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55961 + ... + 56178.

It is an arithmetic number, because the mean of its divisors is an integer number (3083850).

Almost surely, 2^12223151 is an apocalyptic number.

12223151 is a deficient number, since it is larger than the sum of its proper divisors (112249).

12223151 is a wasteful number, since it uses less digits than its factorization.

12223151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112248.

The product of its digits is 120, while the sum is 17.

The square root of 12223151 is about 3496.1623246068. The cubic root of 12223151 is about 230.3532756231.

Adding to 12223151 its reverse (15132221), we get a palindrome (27355372).

The spelling of 12223151 in words is "twelve million, two hundred twenty-three thousand, one hundred fifty-one".