12281002 has 8 divisors (see below), whose sum is σ = 18493956. Its totient is φ = 6116352.

The previous prime is 12280997. The next prime is 12281029. The reversal of 12281002 is 20018221.

It can be written as a sum of positive squares in 2 ways, for example, as 8590761 + 3690241 = 2931^2 + 1921^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11433 + ... + 12460.

Almost surely, 2^12281002 is an apocalyptic number.

12281002 is a deficient number, since it is larger than the sum of its proper divisors (6212954).

12281002 is a wasteful number, since it uses less digits than its factorization.

12281002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24152.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 12281002 is about 3504.4260585722. The cubic root of 12281002 is about 230.7161171040.

Adding to 12281002 its reverse (20018221), we get a palindrome (32299223).

The spelling of 12281002 in words is "twelve million, two hundred eighty-one thousand, two".