212058018 has 12 divisors (see below), whose sum is σ = 459459078. Its totient is φ = 70686000.

The previous prime is 212058013. The next prime is 212058019. The reversal of 212058018 is 810850212.

It can be written as a sum of positive squares in only one way, i.e., 148425489 + 63632529 = 12183^2 + 7977^2 .

It is a super-5 number, since 5×212058018⁵ (a number of 43 digits) contains 55555 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 212057982 and 212058000.

It is not an unprimeable number, because it can be changed into a prime (212058013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5890483 + ... + 5890518.

Almost surely, 2^212058018 is an apocalyptic number.

212058018 is an abundant number, since it is smaller than the sum of its proper divisors (247401060).

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

212058018 is a wasteful number, since it uses less digits than its factorization.

212058018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11781009 (or 11781006 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 212058018 is about 14562.2119885682. The cubic root of 212058018 is about 596.3275848041.

The spelling of 212058018 in words is "two hundred twelve million, fifty-eight thousand, eighteen".