12172202 has 8 divisors (see below), whose sum is σ = 20866656. Its totient is φ = 5216652.

The previous prime is 12172189. The next prime is 12172219. The reversal of 12172202 is 20227121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×12172202³ (a number of 22 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434708 + ... + 434735.

It is an arithmetic number, because the mean of its divisors is an integer number (2608332).

Almost surely, 2^12172202 is an apocalyptic number.

12172202 is a deficient number, since it is larger than the sum of its proper divisors (8694454).

12172202 is an equidigital number, since it uses as much as digits as its factorization.

12172202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869452.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 12172202 is about 3488.8682978869. The cubic root of 12172202 is about 230.0327741576.

Adding to 12172202 its reverse (20227121), we get a palindrome (32399323).

The spelling of 12172202 in words is "twelve million, one hundred seventy-two thousand, two hundred two".