12242251 has 16 divisors (see below), whose sum is σ = 14918400. Its totient is φ = 9812448.

The previous prime is 12242221. The next prime is 12242257. The reversal of 12242251 is 15224221.

It is a cyclic number.

It is not a de Polignac number, because 12242251 - 2⁷ = 12242123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (12242257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10485 + ... + 11593.

It is an arithmetic number, because the mean of its divisors is an integer number (932400).

Almost surely, 2^12242251 is an apocalyptic number.

12242251 is a deficient number, since it is larger than the sum of its proper divisors (2676149).

12242251 is a wasteful number, since it uses less digits than its factorization.

12242251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218.

The product of its digits is 320, while the sum is 19.

The square root of 12242251 is about 3498.8928248805. The cubic root of 12242251 is about 230.4731971790.

Adding to 12242251 its reverse (15224221), we get a palindrome (27466472).

The spelling of 12242251 in words is "twelve million, two hundred forty-two thousand, two hundred fifty-one".