342251212121 has 32 divisors (see below), whose sum is σ = 422794444800. Its totient is φ = 269789486400.

The previous prime is 342251212021. The next prime is 342251212123. The reversal of 342251212121 is 121212152243.

It is not a de Polignac number, because 342251212121 - 2²² = 342247017817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (342251212123) 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, 35829296 + ... + 35838846.

It is an arithmetic number, because the mean of its divisors is an integer number (13212326400).

Almost surely, 2^342251212121 is an apocalyptic number.

It is an amenable number.

342251212121 is a deficient number, since it is larger than the sum of its proper divisors (80543232679).

342251212121 is a wasteful number, since it uses less digits than its factorization.

342251212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10989.

The product of its digits is 1920, while the sum is 26.

Adding to 342251212121 its reverse (121212152243), we get a palindrome (463463364364).

The spelling of 342251212121 in words is "three hundred forty-two billion, two hundred fifty-one million, two hundred twelve thousand, one hundred twenty-one".