342220121 has 8 divisors (see below), whose sum is σ = 347689440. Its totient is φ = 336761568.

The previous prime is 342220117. The next prime is 342220147. The reversal of 342220121 is 121022243.

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

It is a cyclic number.

It is not a de Polignac number, because 342220121 - 2² = 342220117 is a prime.

It is a super-2 number, since 2×342220121² = 234229222434509282, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 342220121.

It is not an unprimeable number, because it can be changed into a prime (342220321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82325 + ... + 86381.

It is an arithmetic number, because the mean of its divisors is an integer number (43461180).

Almost surely, 2^342220121 is an apocalyptic number.

It is an amenable number.

342220121 is a deficient number, since it is larger than the sum of its proper divisors (5469319).

342220121 is a wasteful number, since it uses less digits than its factorization.

342220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5383.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 342220121 is about 18499.1924418338. The cubic root of 342220121 is about 699.4690674708.

Adding to 342220121 its reverse (121022243), we get a palindrome (463242364).

The spelling of 342220121 in words is "three hundred forty-two million, two hundred twenty thousand, one hundred twenty-one".