12241511 has 4 divisors (see below), whose sum is σ = 12266352. Its totient is φ = 12216672.

The previous prime is 12241507. The next prime is 12241517. The reversal of 12241511 is 11514221.

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 12241511 - 2² = 12241507 is a prime.

It is a super-3 number, since 3×12241511³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12241511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12241517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11666 + ... + 12671.

It is an arithmetic number, because the mean of its divisors is an integer number (3066588).

Almost surely, 2^12241511 is an apocalyptic number.

12241511 is a deficient number, since it is larger than the sum of its proper divisors (24841).

12241511 is an equidigital number, since it uses as much as digits as its factorization.

12241511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24840.

The product of its digits is 80, while the sum is 17.

The square root of 12241511 is about 3498.7870755449. The cubic root of 12241511 is about 230.4685533270.

Adding to 12241511 its reverse (11514221), we get a palindrome (23755732).

The spelling of 12241511 in words is "twelve million, two hundred forty-one thousand, five hundred eleven".