212112003 has 32 divisors (see below), whose sum is σ = 309795840. Its totient is φ = 128670080.

The previous prime is 212112001. The next prime is 212112023. The reversal of 212112003 is 300211212.

It is a cyclic number.

It is not a de Polignac number, because 212112003 - 2¹ = 212112001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212112003.

It is not an unprimeable number, because it can be changed into a prime (212112001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 141325 + ... + 142817.

It is an arithmetic number, because the mean of its divisors is an integer number (9681120).

Almost surely, 2^212112003 is an apocalyptic number.

212112003 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

212112003 is a deficient number, since it is larger than the sum of its proper divisors (97683837).

212112003 is a wasteful number, since it uses less digits than its factorization.

212112003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 212112003 is about 14564.0654695040. The cubic root of 212112003 is about 596.3781841849.

Adding to 212112003 its reverse (300211212), we get a palindrome (512323215).

The spelling of 212112003 in words is "two hundred twelve million, one hundred twelve thousand, three".