212120221203 has 48 divisors (see below), whose sum is σ = 346906699776. Its totient is φ = 128454971040.

The previous prime is 212120221147. The next prime is 212120221303. The reversal of 212120221203 is 302122021212.

212120221203 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 212120221203 - 2⁹ = 212120220691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212120221303) 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 47 ways as a sum of consecutive naturals, for example, 3382350 + ... + 3444492.

It is an arithmetic number, because the mean of its divisors is an integer number (7227222912).

Almost surely, 2^212120221203 is an apocalyptic number.

212120221203 is a deficient number, since it is larger than the sum of its proper divisors (134786478573).

212120221203 is a wasteful number, since it uses less digits than its factorization.

212120221203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63446 (or 63434 counting only the distinct ones).

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

Adding to 212120221203 its reverse (302122021212), we get a palindrome (514242242415).

Subtracting 212120221203 from its reverse (302122021212), we obtain a square (90001800009 = 300003²).

The spelling of 212120221203 in words is "two hundred twelve billion, one hundred twenty million, two hundred twenty-one thousand, two hundred three".