212121103303 has 16 divisors (see below), whose sum is σ = 227487951360. Its totient is φ = 197076297600.

The previous prime is 212121103289. The next prime is 212121103349. The reversal of 212121103303 is 303301121212.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212121103303 is a prime.

It is a super-3 number, since 3×212121103303³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212121103373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8167248 + ... + 8193178.

It is an arithmetic number, because the mean of its divisors is an integer number (14217996960).

Almost surely, 2^212121103303 is an apocalyptic number.

212121103303 is a deficient number, since it is larger than the sum of its proper divisors (15366848057).

212121103303 is a wasteful number, since it uses less digits than its factorization.

212121103303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32118.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 212121103303 its reverse (303301121212), we get a palindrome (515422224515).

The spelling of 212121103303 in words is "two hundred twelve billion, one hundred twenty-one million, one hundred three thousand, three hundred three".