212100010202021 has 8 divisors (see below), whose sum is σ = 213050964578304. Its totient is φ = 211149201379680.

The previous prime is 212100010201951. The next prime is 212100010202071. The reversal of 212100010202021 is 120202010001212.

212100010202021 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 cyclic number.

It is not a de Polignac number, because 212100010202021 - 2³⁰ = 212098936460197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212100010201987 and 212100010202005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212100010202071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33467045 + ... + 39296858.

It is an arithmetic number, because the mean of its divisors is an integer number (26631370572288).

Almost surely, 2^{212100010202021} is an apocalyptic number.

It is an amenable number.

212100010202021 is a deficient number, since it is larger than the sum of its proper divisors (950954376283).

212100010202021 is a wasteful number, since it uses less digits than its factorization.

212100010202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72776971.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212100010202021 its reverse (120202010001212), we get a palindrome (332302020203233).

The spelling of 212100010202021 in words is "two hundred twelve trillion, one hundred billion, ten million, two hundred two thousand, twenty-one".