212221344411 has 16 divisors (see below), whose sum is σ = 314492762400. Its totient is φ = 141440049504.

The previous prime is 212221344373. The next prime is 212221344431. The reversal of 212221344411 is 114443122212.

212221344411 is a `hidden beast` number, since 2 + 1 + 2 + 2 + 213 + 4 + 441 + 1 = 666.

212221344411 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 212221344411 - 2³⁴ = 195041475227 is a prime.

It is a super-2 number, since 2×212221344411² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (212221344431) 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, 1039236 + ... + 1226561.

It is an arithmetic number, because the mean of its divisors is an integer number (19655797650).

Almost surely, 2^212221344411 is an apocalyptic number.

212221344411 is a deficient number, since it is larger than the sum of its proper divisors (102271417989).

212221344411 is a wasteful number, since it uses less digits than its factorization.

212221344411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2269275 (or 2269269 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

Adding to 212221344411 its reverse (114443122212), we get a palindrome (326664466623).

The spelling of 212221344411 in words is "two hundred twelve billion, two hundred twenty-one million, three hundred forty-four thousand, four hundred eleven".