12272031 has 6 divisors (see below), whose sum is σ = 17726280. Its totient is φ = 8181348.

The previous prime is 12272023. The next prime is 12272033. The reversal of 12272031 is 13027221.

It is not a de Polignac number, because 12272031 - 2³ = 12272023 is a prime.

It is a super-2 number, since 2×12272031² = 301205489729922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12271995 and 12272013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12272033) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 681771 + ... + 681788.

It is an arithmetic number, because the mean of its divisors is an integer number (2954380).

Almost surely, 2^12272031 is an apocalyptic number.

12272031 is a deficient number, since it is larger than the sum of its proper divisors (5454249).

12272031 is a wasteful number, since it uses less digits than its factorization.

12272031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363565 (or 1363562 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 12272031 is about 3503.1458719271. The cubic root of 12272031 is about 230.6599257481.

Adding to 12272031 its reverse (13027221), we get a palindrome (25299252).

The spelling of 12272031 in words is "twelve million, two hundred seventy-two thousand, thirty-one".