212110020221 has 8 divisors (see below), whose sum is σ = 245004087744. Its totient is φ = 181484509120.

The previous prime is 212110020163. The next prime is 212110020223. The reversal of 212110020221 is 122020011212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212110020221 - 2¹⁴ = 212110003837 is a prime.

It is a super-3 number, since 3×212110020221³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212110020196 and 212110020205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212110020223) 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, 567138905 + ... + 567139278.

It is an arithmetic number, because the mean of its divisors is an integer number (30625510968).

Almost surely, 2^212110020221 is an apocalyptic number.

It is an amenable number.

212110020221 is a deficient number, since it is larger than the sum of its proper divisors (32894067523).

212110020221 is a wasteful number, since it uses less digits than its factorization.

212110020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134278211.

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

Adding to 212110020221 its reverse (122020011212), we get a palindrome (334130031433).

Subtracting from 212110020221 its reverse (122020011212), we obtain a palindrome (90090009009).

The spelling of 212110020221 in words is "two hundred twelve billion, one hundred ten million, twenty thousand, two hundred twenty-one".