12212220203 has 4 divisors (see below), whose sum is σ = 12496225368. Its totient is φ = 11928215040.

The previous prime is 12212220143. The next prime is 12212220239. The reversal of 12212220203 is 30202221221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12212220203 - 2¹⁰ = 12212219179 is a prime.

It is a super-2 number, since 2×12212220203² (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 (12212220103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142002518 + ... + 142002603.

It is an arithmetic number, because the mean of its divisors is an integer number (3124056342).

Almost surely, 2^12212220203 is an apocalyptic number.

12212220203 is a deficient number, since it is larger than the sum of its proper divisors (284005165).

12212220203 is an equidigital number, since it uses as much as digits as its factorization.

12212220203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284005164.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 12212220203 its reverse (30202221221), we get a palindrome (42414441424).

The spelling of 12212220203 in words is "twelve billion, two hundred twelve million, two hundred twenty thousand, two hundred three".