212121223310003 has 24 divisors (see below), whose sum is σ = 246843730411200. Its totient is φ = 181751535277200.

The previous prime is 212121223309999. The next prime is 212121223310033. The reversal of 212121223310003 is 300013322121212.

It is not a de Polignac number, because 212121223310003 - 2² = 212121223309999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212121223310033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5626688048 + ... + 5626725746.

It is an arithmetic number, because the mean of its divisors is an integer number (10285155433800).

Almost surely, 2^{212121223310003} is an apocalyptic number.

212121223310003 is a deficient number, since it is larger than the sum of its proper divisors (34722507101197).

212121223310003 is a wasteful number, since it uses less digits than its factorization.

212121223310003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76767 (or 76760 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 212121223310003 its reverse (300013322121212), we get a palindrome (512134545431215).

The spelling of 212121223310003 in words is "two hundred twelve trillion, one hundred twenty-one billion, two hundred twenty-three million, three hundred ten thousand, three".