213221203112 has 8 divisors (see below), whose sum is σ = 399789755850. Its totient is φ = 106610601552.

The previous prime is 213221203081. The next prime is 213221203171. The reversal of 213221203112 is 211302122312.

213221203112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 211495132996 + 1726070116 = 459886^2 + 41546^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 13326325187 + ... + 13326325202.

Almost surely, 2^213221203112 is an apocalyptic number.

It is an amenable number.

213221203112 is a deficient number, since it is larger than the sum of its proper divisors (186568552738).

213221203112 is a wasteful number, since it uses less digits than its factorization.

213221203112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26652650395 (or 26652650391 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 213221203112 its reverse (211302122312), we get a palindrome (424523325424).

The spelling of 213221203112 in words is "two hundred thirteen billion, two hundred twenty-one million, two hundred three thousand, one hundred twelve".