12220342 has 8 divisors (see below), whose sum is σ = 18756936. Its totient is φ = 5968032.

The previous prime is 12220333. The next prime is 12220361. The reversal of 12220342 is 24302221.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70963 + ... + 71134.

It is an arithmetic number, because the mean of its divisors is an integer number (2344617).

Almost surely, 2^12220342 is an apocalyptic number.

12220342 is a deficient number, since it is larger than the sum of its proper divisors (6536594).

12220342 is a wasteful number, since it uses less digits than its factorization.

12220342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142142.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 12220342 is about 3495.7605753255. The cubic root of 12220342 is about 230.3356284571.

Adding to 12220342 its reverse (24302221), we get a palindrome (36522563).

The spelling of 12220342 in words is "twelve million, two hundred twenty thousand, three hundred forty-two".