212200120212021 has 24 divisors (see below), whose sum is σ = 312295453966080. Its totient is φ = 138797146272096.

The previous prime is 212200120211929. The next prime is 212200120212049. The reversal of 212200120212021 is 120212021002212.

It is a happy number.

212200120212021 is a `hidden beast` number, since 212 + 200 + 1 + 20 + 212 + 0 + 21 = 666.

212200120212021 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 212200120212021 - 2¹⁵ = 212200120179253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212200120211985 and 212200120212003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212200120212221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 303537540 + ... + 304235826.

It is an arithmetic number, because the mean of its divisors is an integer number (13012310581920).

Almost surely, 2^{212200120212021} is an apocalyptic number.

It is an amenable number.

212200120212021 is a deficient number, since it is larger than the sum of its proper divisors (100095333754059).

212200120212021 is a wasteful number, since it uses less digits than its factorization.

212200120212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335425 (or 1335422 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212200120212021 its reverse (120212021002212), we get a palindrome (332412141214233).

The spelling of 212200120212021 in words is "two hundred twelve trillion, two hundred billion, one hundred twenty million, two hundred twelve thousand, twenty-one".