212023320105 has 64 divisors (see below), whose sum is σ = 350106624000. Its totient is φ = 109519018752.

The previous prime is 212023320097. The next prime is 212023320121. The reversal of 212023320105 is 501023320212.

212023320105 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 212023320105 - 2³ = 212023320097 is a prime.

It is a super-2 number, since 2×212023320105² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 35164231 + ... + 35170259.

It is an arithmetic number, because the mean of its divisors is an integer number (5470416000).

Almost surely, 2^212023320105 is an apocalyptic number.

It is an amenable number.

212023320105 is a deficient number, since it is larger than the sum of its proper divisors (138083303895).

212023320105 is a wasteful number, since it uses less digits than its factorization.

212023320105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6678.

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 212023320105 its reverse (501023320212), we get a palindrome (713046640317).

The spelling of 212023320105 in words is "two hundred twelve billion, twenty-three million, three hundred twenty thousand, one hundred five".