212108018339 has 4 divisors (see below), whose sum is σ = 242409163824. Its totient is φ = 181806872856.

The previous prime is 212108018327. The next prime is 212108018377. The reversal of 212108018339 is 933810801212.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 212108018339 - 2¹⁶ = 212107952803 is a prime.

It is a super-2 number, since 2×212108018339² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212108018939) 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, 15150572732 + ... + 15150572745.

It is an arithmetic number, because the mean of its divisors is an integer number (60602290956).

Almost surely, 2^212108018339 is an apocalyptic number.

212108018339 is a deficient number, since it is larger than the sum of its proper divisors (30301145485).

212108018339 is an equidigital number, since it uses as much as digits as its factorization.

212108018339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30301145484.

The product of its (nonzero) digits is 20736, while the sum is 38.

The spelling of 212108018339 in words is "two hundred twelve billion, one hundred eight million, eighteen thousand, three hundred thirty-nine".