212101221003 has 48 divisors (see below), whose sum is σ = 340413749280. Its totient is φ = 116988178944.

The previous prime is 212101220999. The next prime is 212101221049. The reversal of 212101221003 is 300122101212.

212101221003 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 212101221003 - 2² = 212101220999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212101221503) 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, 29483575 + ... + 29490767.

It is an arithmetic number, because the mean of its divisors is an integer number (7091953110).

Almost surely, 2^212101221003 is an apocalyptic number.

212101221003 is a deficient number, since it is larger than the sum of its proper divisors (128312528277).

212101221003 is a wasteful number, since it uses less digits than its factorization.

212101221003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14156 (or 14149 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 212101221003 its reverse (300122101212), we get a palindrome (512223322215).

The spelling of 212101221003 in words is "two hundred twelve billion, one hundred one million, two hundred twenty-one thousand, three".