12212342 has 8 divisors (see below), whose sum is σ = 18765432. Its totient is φ = 5957200.

The previous prime is 12212327. The next prime is 12212363. The reversal of 12212342 is 24321221.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12212342.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 74384 + ... + 74547.

It is an arithmetic number, because the mean of its divisors is an integer number (2345679).

Almost surely, 2^12212342 is an apocalyptic number.

12212342 is a deficient number, since it is larger than the sum of its proper divisors (6553090).

12212342 is a wasteful number, since it uses less digits than its factorization.

12212342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148974.

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

The square root of 12212342 is about 3494.6161448720. The cubic root of 12212342 is about 230.2853547065.

Adding to 12212342 its reverse (24321221), we get a palindrome (36533563).

It can be divided in two parts, 1221 and 2342, that multiplied together give a palindrome (2859582).

The spelling of 12212342 in words is "twelve million, two hundred twelve thousand, three hundred forty-two".