12122002 has 4 divisors (see below), whose sum is σ = 18183006. Its totient is φ = 6061000.

The previous prime is 12121987. The next prime is 12122009. The reversal of 12122002 is 20022121.

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., 9369721 + 2752281 = 3061^2 + 1659^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12122002.

It is not an unprimeable number, because it can be changed into a prime (12122009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3030499 + ... + 3030502.

Almost surely, 2^12122002 is an apocalyptic number.

12122002 is a deficient number, since it is larger than the sum of its proper divisors (6061004).

12122002 is an equidigital number, since it uses as much as digits as its factorization.

12122002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6061003.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 12122002 is about 3481.6665549705. Note that the first 3 decimals coincide. The cubic root of 12122002 is about 229.7161084609.

Adding to 12122002 its reverse (20022121), we get a palindrome (32144123).

The spelling of 12122002 in words is "twelve million, one hundred twenty-two thousand, two".