212555034342 has 24 divisors (see below), whose sum is σ = 526326752016. Its totient is φ = 60730009776.

The previous prime is 212555034331. The next prime is 212555034343. The reversal of 212555034342 is 243430555212.

212555034342 is a `hidden beast` number, since 2 + 1 + 25 + 550 + 3 + 43 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 212555034297 and 212555034306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212555034343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 843472233 + ... + 843472484.

It is an arithmetic number, because the mean of its divisors is an integer number (21930281334).

Almost surely, 2^212555034342 is an apocalyptic number.

212555034342 is an abundant number, since it is smaller than the sum of its proper divisors (313771717674).

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

212555034342 is a wasteful number, since it uses less digits than its factorization.

212555034342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686944732 (or 1686944729 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 212555034342 its reverse (243430555212), we get a palindrome (455985589554).

The spelling of 212555034342 in words is "two hundred twelve billion, five hundred fifty-five million, thirty-four thousand, three hundred forty-two".