12272272 has 10 divisors (see below), whose sum is σ = 23777558. Its totient is φ = 6136128.

The previous prime is 12272269. The next prime is 12272287. The reversal of 12272272 is 27227221.

It can be written as a sum of positive squares in only one way, i.e., 11182336 + 1089936 = 3344^2 + 1044^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383493 + ... + 383524.

Almost surely, 2^12272272 is an apocalyptic number.

It is an amenable number.

12272272 is a deficient number, since it is larger than the sum of its proper divisors (11505286).

12272272 is an equidigital number, since it uses as much as digits as its factorization.

12272272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767025 (or 767019 counting only the distinct ones).

The product of its digits is 1568, while the sum is 25.

The square root of 12272272 is about 3503.1802694124. The cubic root of 12272272 is about 230.6614356497.

Adding to 12272272 its reverse (27227221), we get a palindrome (39499493).

It can be divided in two parts, 12272 and 272, that added together give a square (12544 = 112²).

The spelling of 12272272 in words is "twelve million, two hundred seventy-two thousand, two hundred seventy-two".