212012220213 has 12 divisors (see below), whose sum is σ = 306244931148. Its totient is φ = 141339145920.

The previous prime is 212012220179. The next prime is 212012220223. The reversal of 212012220213 is 312022210212.

It can be written as a sum of positive squares in 2 ways, for example, as 70691110884 + 141321109329 = 265878^2 + 375927^2 .

It is not a de Polignac number, because 212012220213 - 2⁶ = 212012220149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212012220223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 518143 + ... + 832163.

It is an arithmetic number, because the mean of its divisors is an integer number (25520410929).

Almost surely, 2^212012220213 is an apocalyptic number.

It is an amenable number.

212012220213 is a deficient number, since it is larger than the sum of its proper divisors (94232710935).

212012220213 is a wasteful number, since it uses less digits than its factorization.

212012220213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389044 (or 389041 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 212012220213 its reverse (312022210212), we get a palindrome (524034430425).

The spelling of 212012220213 in words is "two hundred twelve billion, twelve million, two hundred twenty thousand, two hundred thirteen".