12272208 has 80 divisors (see below), whose sum is σ = 34747776. Its totient is φ = 3709440.

The previous prime is 12272167. The next prime is 12272231. The reversal of 12272208 is 80227221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44166 + ... + 44442.

Almost surely, 2^12272208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12272208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17373888).

12272208 is an abundant number, since it is smaller than the sum of its proper divisors (22475568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12272208 is a wasteful number, since it uses less digits than its factorization.

12272208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372 (or 366 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 12272208 is about 3503.1711348434. The cubic root of 12272208 is about 230.6610346819.

Adding to 12272208 its reverse (80227221), we get a palindrome (92499429).

The spelling of 12272208 in words is "twelve million, two hundred seventy-two thousand, two hundred eight".