342112221 has 32 divisors (see below), whose sum is σ = 556953600. Its totient is φ = 205824240.

The previous prime is 342112213. The next prime is 342112223. The reversal of 342112221 is 122211243.

It is a happy number.

It is not a de Polignac number, because 342112221 - 2³ = 342112213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 342112194 and 342112203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342112223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37140 + ... + 45426.

It is an arithmetic number, because the mean of its divisors is an integer number (17404800).

Almost surely, 2^342112221 is an apocalyptic number.

It is an amenable number.

342112221 is a deficient number, since it is larger than the sum of its proper divisors (214841379).

342112221 is a wasteful number, since it uses less digits than its factorization.

342112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8446 (or 8440 counting only the distinct ones).

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

The square root of 342112221 is about 18496.2758684012. The cubic root of 342112221 is about 699.3955469098.

Adding to 342112221 its reverse (122211243), we get a palindrome (464323464).

The spelling of 342112221 in words is "three hundred forty-two million, one hundred twelve thousand, two hundred twenty-one".