12197822 has 16 divisors (see below), whose sum is σ = 22519392. Its totient is φ = 4825440.

The previous prime is 12197821. The next prime is 12197839. The reversal of 12197822 is 22879121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12197821) 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, 33329 + ... + 33692.

It is an arithmetic number, because the mean of its divisors is an integer number (1407462).

Almost surely, 2^12197822 is an apocalyptic number.

12197822 is a deficient number, since it is larger than the sum of its proper divisors (10321570).

12197822 is a wasteful number, since it uses less digits than its factorization.

12197822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67043.

The product of its digits is 4032, while the sum is 32.

The square root of 12197822 is about 3492.5380456052. The cubic root of 12197822 is about 230.1940517328.

The spelling of 12197822 in words is "twelve million, one hundred ninety-seven thousand, eight hundred twenty-two".