212002002021 has 16 divisors (see below), whose sum is σ = 283970119680. Its totient is φ = 140684651520.

The previous prime is 212002001987. The next prime is 212002002049. The reversal of 212002002021 is 120200200212.

212002002021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212002002021 - 2²⁹ = 211465131109 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 212002001988 and 212002002006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212002002521) 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 15 ways as a sum of consecutive naturals, for example, 2304220 + ... + 2394458.

It is an arithmetic number, because the mean of its divisors is an integer number (17748132480).

Almost surely, 2^212002002021 is an apocalyptic number.

It is an amenable number.

212002002021 is a deficient number, since it is larger than the sum of its proper divisors (71968117659).

212002002021 is a wasteful number, since it uses less digits than its factorization.

212002002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93836.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 212002002021 its reverse (120200200212), we get a palindrome (332202202233).

The spelling of 212002002021 in words is "two hundred twelve billion, two million, two thousand, twenty-one".