2121212012003 has 16 divisors (see below), whose sum is σ = 2470245776640. Its totient is φ = 1783686424416.

The previous prime is 2121212011979. The next prime is 2121212012057. The reversal of 2121212012003 is 3002102121212.

It is a cyclic number.

It is not a de Polignac number, because 2121212012003 - 2¹⁴ = 2121211995619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2121212012093) 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, 3239276 + ... + 3838662.

It is an arithmetic number, because the mean of its divisors is an integer number (154390361040).

Almost surely, 2^{2121212012003} is an apocalyptic number.

2121212012003 is a deficient number, since it is larger than the sum of its proper divisors (349033764637).

2121212012003 is an equidigital number, since it uses as much as digits as its factorization.

2121212012003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608986.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2121212012003 its reverse (3002102121212), we get a palindrome (5123314133215).

The spelling of 2121212012003 in words is "two trillion, one hundred twenty-one billion, two hundred twelve million, twelve thousand, three".