12212222342 has 4 divisors (see below), whose sum is σ = 18318333516. Its totient is φ = 6106111170.

The previous prime is 12212222339. The next prime is 12212222371. The reversal of 12212222342 is 24322221221.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3053055584 + ... + 3053055587.

It is an arithmetic number, because the mean of its divisors is an integer number (4579583379).

Almost surely, 2^12212222342 is an apocalyptic number.

12212222342 is a deficient number, since it is larger than the sum of its proper divisors (6106111174).

12212222342 is an equidigital number, since it uses as much as digits as its factorization.

12212222342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6106111173.

The product of its digits is 1536, while the sum is 23.

Adding to 12212222342 its reverse (24322221221), we get a palindrome (36534443563).

The spelling of 12212222342 in words is "twelve billion, two hundred twelve million, two hundred twenty-two thousand, three hundred forty-two".