212101018 has 8 divisors (see below), whose sum is σ = 324154548. Its totient is φ = 104049504.

The previous prime is 212101013. The next prime is 212101031. The reversal of 212101018 is 810101212.

212101018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 211615209 + 485809 = 14547^2 + 697^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 212100992 and 212101010.

It is not an unprimeable number, because it can be changed into a prime (212101013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1000371 + ... + 1000582.

Almost surely, 2^212101018 is an apocalyptic number.

212101018 is a deficient number, since it is larger than the sum of its proper divisors (112053530).

212101018 is a wasteful number, since it uses less digits than its factorization.

212101018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001008.

The product of its (nonzero) digits is 32, while the sum is 16.

The square root of 212101018 is about 14563.6883377804. The cubic root of 212101018 is about 596.3678887948.

The spelling of 212101018 in words is "two hundred twelve million, one hundred one thousand, eighteen".