212000000021006 has 8 divisors (see below), whose sum is σ = 318194257825080. Its totient is φ = 105935247412648.

The previous prime is 212000000020987. The next prime is 212000000021021. The reversal of 212000000021006 is 600120000000212.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32376294836 + ... + 32376301383.

It is an arithmetic number, because the mean of its divisors is an integer number (39774282228135).

Almost surely, 2^{212000000021006} is an apocalyptic number.

212000000021006 is a deficient number, since it is larger than the sum of its proper divisors (106194257804074).

212000000021006 is a wasteful number, since it uses less digits than its factorization.

212000000021006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64752597858.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 212000000021006 its reverse (600120000000212), we get a palindrome (812120000021218).

The spelling of 212000000021006 in words is "two hundred twelve trillion, twenty-one thousand, six".