12090202 has 4 divisors (see below), whose sum is σ = 18135306. Its totient is φ = 6045100.

The previous prime is 12090173. The next prime is 12090229. The reversal of 12090202 is 20209021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11296321 + 793881 = 3361^2 + 891^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3022549 + ... + 3022552.

Almost surely, 2^12090202 is an apocalyptic number.

12090202 is a deficient number, since it is larger than the sum of its proper divisors (6045104).

12090202 is an equidigital number, since it uses as much as digits as its factorization.

12090202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6045103.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 12090202 is about 3477.0967774855. The cubic root of 12090202 is about 229.5150589049.

Adding to 12090202 its reverse (20209021), we get a palindrome (32299223).

The spelling of 12090202 in words is "twelve million, ninety thousand, two hundred two".