212070018 has 16 divisors (see below), whose sum is σ = 424846080. Its totient is φ = 70572336.

The previous prime is 212070017. The next prime is 212070031. The reversal of 212070018 is 810070212.

212070018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212069976 and 212070003.

It is not an unprimeable number, because it can be changed into a prime (212070017) 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, 25473 + ... + 32756.

It is an arithmetic number, because the mean of its divisors is an integer number (26552880).

Almost surely, 2^212070018 is an apocalyptic number.

212070018 is an abundant number, since it is smaller than the sum of its proper divisors (212776062).

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

212070018 is a wasteful number, since it uses less digits than its factorization.

212070018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58841.

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 212070018 is about 14562.6240080557. The cubic root of 212070018 is about 596.3388329775.

The spelling of 212070018 in words is "two hundred twelve million, seventy thousand, eighteen".