12203322442 has 4 divisors (see below), whose sum is σ = 18304983666. Its totient is φ = 6101661220.

The previous prime is 12203322421. The next prime is 12203322479. The reversal of 12203322442 is 24422330221.

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., 11903028201 + 300294241 = 109101^2 + 17329^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3050830609 + ... + 3050830612.

Almost surely, 2^12203322442 is an apocalyptic number.

12203322442 is a deficient number, since it is larger than the sum of its proper divisors (6101661224).

12203322442 is an equidigital number, since it uses as much as digits as its factorization.

12203322442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6101661223.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 12203322442 its reverse (24422330221), we get a palindrome (36625652663).

The spelling of 12203322442 in words is "twelve billion, two hundred three million, three hundred twenty-two thousand, four hundred forty-two".