212131011330223 has 16 divisors (see below), whose sum is σ = 221162688489600. Its totient is φ = 203285725572384.

The previous prime is 212131011330221. The next prime is 212131011330239. The reversal of 212131011330223 is 322033110131212.

It is a cyclic number.

It is not a de Polignac number, because 212131011330223 - 2¹ = 212131011330221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212131011330221) 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 15 ways as a sum of consecutive naturals, for example, 189883128 + ... + 190997026.

It is an arithmetic number, because the mean of its divisors is an integer number (13822668030600).

Almost surely, 2^{212131011330223} is an apocalyptic number.

212131011330223 is a deficient number, since it is larger than the sum of its proper divisors (9031677159377).

212131011330223 is a wasteful number, since it uses less digits than its factorization.

212131011330223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197558.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 212131011330223 its reverse (322033110131212), we get a palindrome (534164121461435).

The spelling of 212131011330223 in words is "two hundred twelve trillion, one hundred thirty-one billion, eleven million, three hundred thirty thousand, two hundred twenty-three".