212202202230021 has 8 divisors (see below), whose sum is σ = 282954595776640. Its totient is φ = 141458971751712.

The previous prime is 212202202229959. The next prime is 212202202230059. The reversal of 212202202230021 is 120032202202212.

212202202230021 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 not a de Polignac number, because 212202202230021 - 2⁷ = 212202202229893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212202202230021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212202202238021) 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, 2290713040 + ... + 2290805673.

It is an arithmetic number, because the mean of its divisors is an integer number (35369324472080).

Almost surely, 2^{212202202230021} is an apocalyptic number.

It is an amenable number.

212202202230021 is a deficient number, since it is larger than the sum of its proper divisors (70752393546619).

212202202230021 is a wasteful number, since it uses less digits than its factorization.

212202202230021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4581534155.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 212202202230021 its reverse (120032202202212), we get a palindrome (332234404432233).

The spelling of 212202202230021 in words is "two hundred twelve trillion, two hundred two billion, two hundred two million, two hundred thirty thousand, twenty-one".