212021120006 has 4 divisors (see below), whose sum is σ = 318031680012. Its totient is φ = 106010560002.

The previous prime is 212021119997. The next prime is 212021120021. The reversal of 212021120006 is 600021120212.

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

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 as a sum of consecutive naturals, namely, 53005280000 + ... + 53005280003.

It is an arithmetic number, because the mean of its divisors is an integer number (79507920003).

Almost surely, 2^212021120006 is an apocalyptic number.

212021120006 is a deficient number, since it is larger than the sum of its proper divisors (106010560006).

212021120006 is a wasteful number, since it uses less digits than its factorization.

212021120006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106010560005.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 212021120006 its reverse (600021120212), we get a palindrome (812042240218).

The spelling of 212021120006 in words is "two hundred twelve billion, twenty-one million, one hundred twenty thousand, six".