1224222002 has 4 divisors (see below), whose sum is σ = 1836333006. Its totient is φ = 612111000.

The previous prime is 1224222001. The next prime is 1224222011. The reversal of 1224222002 is 2002224221.

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., 719366041 + 504855961 = 26821^2 + 22469^2 .

It is not an unprimeable number, because it can be changed into a prime (1224222001) by changing a digit.

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 as a sum of consecutive naturals, namely, 306055499 + ... + 306055502.

Almost surely, 2^1224222002 is an apocalyptic number.

1224222002 is a deficient number, since it is larger than the sum of its proper divisors (612111004).

1224222002 is an equidigital number, since it uses as much as digits as its factorization.

1224222002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612111003.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 1224222002 is about 34988.8839776292. The cubic root of 1224222002 is about 1069.7609160994.

Adding to 1224222002 its reverse (2002224221), we get a palindrome (3226446223).

The spelling of 1224222002 in words is "one billion, two hundred twenty-four million, two hundred twenty-two thousand, two".