12222321002 has 4 divisors (see below), whose sum is σ = 18333481506. Its totient is φ = 6111160500.

The previous prime is 12222320987. The next prime is 12222321011. The reversal of 12222321002 is 20012322221.

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., 10782953281 + 1439367721 = 103841^2 + 37939^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3055580249 + ... + 3055580252.

Almost surely, 2^12222321002 is an apocalyptic number.

12222321002 is a deficient number, since it is larger than the sum of its proper divisors (6111160504).

12222321002 is an equidigital number, since it uses as much as digits as its factorization.

12222321002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6111160503.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 12222321002 its reverse (20012322221), we get a palindrome (32234643223).

The spelling of 12222321002 in words is "twelve billion, two hundred twenty-two million, three hundred twenty-one thousand, two".