12312142222 has 8 divisors (see below), whose sum is σ = 18472578696. Its totient is φ = 6154615992.

The previous prime is 12312142211. The next prime is 12312142267. The reversal of 12312142222 is 22224121321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12312142193 and 12312142202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 716953 + ... + 733924.

It is an arithmetic number, because the mean of its divisors is an integer number (2309072337).

Almost surely, 2^12312142222 is an apocalyptic number.

12312142222 is a deficient number, since it is larger than the sum of its proper divisors (6160436474).

12312142222 is a wasteful number, since it uses less digits than its factorization.

12312142222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455122.

The product of its digits is 768, while the sum is 22.

Adding to 12312142222 its reverse (22224121321), we get a palindrome (34536263543).

The spelling of 12312142222 in words is "twelve billion, three hundred twelve million, one hundred forty-two thousand, two hundred twenty-two".