342216111 has 4 divisors (see below), whose sum is σ = 456288152. Its totient is φ = 228144072.

The previous prime is 342216079. The next prime is 342216113. The reversal of 342216111 is 111612243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111612243 = 3 ⋅37204081.

It is not a de Polignac number, because 342216111 - 2⁵ = 342216079 is a prime.

It is a super-2 number, since 2×342216111² = 234223733255928642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342216113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57036016 + ... + 57036021.

It is an arithmetic number, because the mean of its divisors is an integer number (114072038).

Almost surely, 2^342216111 is an apocalyptic number.

342216111 is a deficient number, since it is larger than the sum of its proper divisors (114072041).

342216111 is a wasteful number, since it uses less digits than its factorization.

342216111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114072040.

The product of its digits is 288, while the sum is 21.

The square root of 342216111 is about 18499.0840584068. The cubic root of 342216111 is about 699.4663354262.

Adding to 342216111 its reverse (111612243), we get a palindrome (453828354).

The spelling of 342216111 in words is "three hundred forty-two million, two hundred sixteen thousand, one hundred eleven".