212424042342 has 32 divisors (see below), whose sum is σ = 426498589440. Its totient is φ = 70533387360.

The previous prime is 212424042293. The next prime is 212424042359. The reversal of 212424042342 is 243240424212.

It is a happy number.

It is a super-3 number, since 3×212424042342³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1821117 + ... + 1934247.

It is an arithmetic number, because the mean of its divisors is an integer number (13328080920).

Almost surely, 2^212424042342 is an apocalyptic number.

212424042342 is an abundant number, since it is smaller than the sum of its proper divisors (214074547098).

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

212424042342 is a wasteful number, since it uses less digits than its factorization.

212424042342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114348.

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 212424042342 its reverse (243240424212), we get a palindrome (455664466554).

The spelling of 212424042342 in words is "two hundred twelve billion, four hundred twenty-four million, forty-two thousand, three hundred forty-two".