12212120203 has 8 divisors (see below), whose sum is σ = 12388018176. Its totient is φ = 12036330600.

The previous prime is 12212120201. The next prime is 12212120209. The reversal of 12212120203 is 30202121221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12212120203 - 2¹ = 12212120201 is a prime.

It is a super-2 number, since 2×12212120203² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12212120201) 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 7 ways as a sum of consecutive naturals, for example, 215400 + ... + 266122.

It is an arithmetic number, because the mean of its divisors is an integer number (1548502272).

Almost surely, 2^12212120203 is an apocalyptic number.

12212120203 is a deficient number, since it is larger than the sum of its proper divisors (175897973).

12212120203 is an equidigital number, since it uses as much as digits as its factorization.

12212120203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54185.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12212120203 its reverse (30202121221), we get a palindrome (42414241424).

The spelling of 12212120203 in words is "twelve billion, two hundred twelve million, one hundred twenty thousand, two hundred three".