202212200021 has 16 divisors (see below), whose sum is σ = 218625633408. Its totient is φ = 185922475200.

The previous prime is 202212200017. The next prime is 202212200027. The reversal of 202212200021 is 120002212202.

202212200021 is nontrivially palindromic in base 11.

202212200021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 202212200021 - 2² = 202212200017 is a prime.

It is a super-3 number, since 3×202212200021³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202212199969 and 202212200005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202212200027) 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, 4785416 + ... + 4827486.

It is an arithmetic number, because the mean of its divisors is an integer number (13664102088).

Almost surely, 2^202212200021 is an apocalyptic number.

It is an amenable number.

202212200021 is a deficient number, since it is larger than the sum of its proper divisors (16413433387).

202212200021 is a wasteful number, since it uses less digits than its factorization.

202212200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43532.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 202212200021 its reverse (120002212202), we get a palindrome (322214412223).

The spelling of 202212200021 in words is "two hundred two billion, two hundred twelve million, two hundred thousand, twenty-one".