212023320101 has 4 divisors (see below), whose sum is σ = 219334469100. Its totient is φ = 204712171104.

The previous prime is 212023320097. The next prime is 212023320121. The reversal of 212023320101 is 101023320212.

212023320101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 134531236225 + 77492083876 = 366785^2 + 278374^2 .

It is a cyclic number.

It is not a de Polignac number, because 212023320101 - 2² = 212023320097 is a prime.

It is a super-2 number, since 2×212023320101² (a number of 23 digits) contains 22 as substring.

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 212023320101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212023320121) 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 3 ways as a sum of consecutive naturals, for example, 3655574456 + ... + 3655574513.

It is an arithmetic number, because the mean of its divisors is an integer number (54833617275).

Almost surely, 2^212023320101 is an apocalyptic number.

It is an amenable number.

212023320101 is a deficient number, since it is larger than the sum of its proper divisors (7311148999).

212023320101 is an equidigital number, since it uses as much as digits as its factorization.

212023320101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7311148998.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 212023320101 its reverse (101023320212), we get a palindrome (313046640313).

The spelling of 212023320101 in words is "two hundred twelve billion, twenty-three million, three hundred twenty thousand, one hundred one".