12199020 has 24 divisors (see below), whose sum is σ = 34157424. Its totient is φ = 3253056.

The previous prime is 12199001. The next prime is 12199021. The reversal of 12199020 is 2099121.

It is not an unprimeable number, because it can be changed into a prime (12199021) 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 7 ways as a sum of consecutive naturals, for example, 101599 + ... + 101718.

It is an arithmetic number, because the mean of its divisors is an integer number (1423226).

Almost surely, 2^12199020 is an apocalyptic number.

12199020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12199020 is an abundant number, since it is smaller than the sum of its proper divisors (21958404).

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

12199020 is a wasteful number, since it uses less digits than its factorization.

12199020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203329 (or 203327 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 12199020 is about 3492.7095499053. The cubic root of 12199020 is about 230.2015875986.

The spelling of 12199020 in words is "twelve million, one hundred ninety-nine thousand, twenty".