12205031 has 8 divisors (see below), whose sum is σ = 12966480. Its totient is φ = 11448448.

The previous prime is 12205021. The next prime is 12205033. The reversal of 12205031 is 13050221.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12205031 is a prime.

It is a super-2 number, since 2×12205031² = 297925563421922, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 12204997 and 12205015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12205033) 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, 4865 + ... + 6933.

It is an arithmetic number, because the mean of its divisors is an integer number (1620810).

Almost surely, 2^12205031 is an apocalyptic number.

12205031 is a deficient number, since it is larger than the sum of its proper divisors (761449).

12205031 is a wasteful number, since it uses less digits than its factorization.

12205031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2433.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 12205031 is about 3493.5699506379. The cubic root of 12205031 is about 230.2393915787.

Adding to 12205031 its reverse (13050221), we get a palindrome (25255252).

The spelling of 12205031 in words is "twelve million, two hundred five thousand, thirty-one".