342221112 has 80 divisors (see below), whose sum is σ = 991643400. Its totient is φ = 110134080.

The previous prime is 342221107. The next prime is 342221119. The reversal of 342221112 is 211122243.

It is a happy number.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342221119) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 9687 + ... + 27897.

Almost surely, 2^342221112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 342221112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (495821700).

342221112 is an abundant number, since it is smaller than the sum of its proper divisors (649422288).

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

342221112 is a wasteful number, since it uses less digits than its factorization.

342221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18258 (or 18245 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 342221112 is about 18499.2192267674. The cubic root of 342221112 is about 699.4697426436.

Adding to 342221112 its reverse (211122243), we get a palindrome (553343355).

The spelling of 342221112 in words is "three hundred forty-two million, two hundred twenty-one thousand, one hundred twelve".