12191202 has 32 divisors (see below), whose sum is σ = 27207360. Its totient is φ = 4046400.

The previous prime is 12191191. The next prime is 12191203. The reversal of 12191202 is 20219121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12191203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21373 + ... + 21935.

It is an arithmetic number, because the mean of its divisors is an integer number (850230).

Almost surely, 2^12191202 is an apocalyptic number.

12191202 is an abundant number, since it is smaller than the sum of its proper divisors (15016158).

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

12191202 is a wasteful number, since it uses less digits than its factorization.

12191202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975 (or 969 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 12191202 is about 3491.5901821376. The cubic root of 12191202 is about 230.1524005707.

The spelling of 12191202 in words is "twelve million, one hundred ninety-one thousand, two hundred two".