212223511005 has 16 divisors (see below), whose sum is σ = 370426492224. Its totient is φ = 102896247680.

The previous prime is 212223510977. The next prime is 212223511009. The reversal of 212223511005 is 500115322212.

212223511005 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 212223511005 - 2⁵ = 212223510973 is a prime.

It is a super-2 number, since 2×212223511005² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212223511009) 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, 643101384 + ... + 643101713.

It is an arithmetic number, because the mean of its divisors is an integer number (23151655764).

Almost surely, 2^212223511005 is an apocalyptic number.

It is an amenable number.

212223511005 is a deficient number, since it is larger than the sum of its proper divisors (158202981219).

212223511005 is a wasteful number, since it uses less digits than its factorization.

212223511005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286203116.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 212223511005 its reverse (500115322212), we get a palindrome (712338833217).

The spelling of 212223511005 in words is "two hundred twelve billion, two hundred twenty-three million, five hundred eleven thousand, five".