12222342 has 24 divisors (see below), whose sum is σ = 28889640. Its totient is φ = 3703680.

The previous prime is 12222319. The next prime is 12222349. The reversal of 12222342 is 24322221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30667 + ... + 31062.

It is an arithmetic number, because the mean of its divisors is an integer number (1203735).

Almost surely, 2^12222342 is an apocalyptic number.

12222342 is an abundant number, since it is smaller than the sum of its proper divisors (16667298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12222342 is a wasteful number, since it uses less digits than its factorization.

12222342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61748 (or 61745 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 12222342 is about 3496.0466244031. The cubic root of 12222342 is about 230.3481934662.

Adding to 12222342 its reverse (24322221), we get a palindrome (36544563).

It can be divided in two parts, 122223 and 42, that added together give a triangular number (122265 = T₄₉₄).

The spelling of 12222342 in words is "twelve million, two hundred twenty-two thousand, three hundred forty-two".