212004042 has 24 divisors (see below), whose sum is σ = 450420576. Its totient is φ = 66510528.

The previous prime is 212004031. The next prime is 212004047. The reversal of 212004042 is 240400212.

212004042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (212004047) 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, 59398 + ... + 62865.

It is an arithmetic number, because the mean of its divisors is an integer number (18767524).

Almost surely, 2^212004042 is an apocalyptic number.

212004042 is an abundant number, since it is smaller than the sum of its proper divisors (238416534).

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

212004042 is a wasteful number, since it uses less digits than its factorization.

212004042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122302 (or 122285 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 212004042 is about 14560.3585807493. The cubic root of 212004042 is about 596.2769852727.

Adding to 212004042 its reverse (240400212), we get a palindrome (452404254).

The spelling of 212004042 in words is "two hundred twelve million, four thousand, forty-two".