12219002 has 4 divisors (see below), whose sum is σ = 18328506. Its totient is φ = 6109500.

The previous prime is 12218989. The next prime is 12219007. The reversal of 12219002 is 20091221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20091221 = 2711 ⋅7411.

It can be written as a sum of positive squares in only one way, i.e., 8755681 + 3463321 = 2959^2 + 1861^2 .

It is not an unprimeable number, because it can be changed into a prime (12219007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3054749 + ... + 3054752.

Almost surely, 2^12219002 is an apocalyptic number.

12219002 is a deficient number, since it is larger than the sum of its proper divisors (6109504).

12219002 is an equidigital number, since it uses as much as digits as its factorization.

12219002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6109503.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 12219002 is about 3495.5689093479. The cubic root of 12219002 is about 230.3272091339.

The spelling of 12219002 in words is "twelve million, two hundred nineteen thousand, two".