212001985718 has 8 divisors (see below), whose sum is σ = 321090386448. Its totient is φ = 104971856904.

The previous prime is 212001985717. The next prime is 212001985747. The reversal of 212001985718 is 817589100212.

212001985718 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212001985717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 514567721 + ... + 514568132.

It is an arithmetic number, because the mean of its divisors is an integer number (40136298306).

Almost surely, 2^212001985718 is an apocalyptic number.

212001985718 is a deficient number, since it is larger than the sum of its proper divisors (109088400730).

212001985718 is a wasteful number, since it uses less digits than its factorization.

212001985718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029135958.

The product of its (nonzero) digits is 80640, while the sum is 44.

The spelling of 212001985718 in words is "two hundred twelve billion, one million, nine hundred eighty-five thousand, seven hundred eighteen".