12012220203 has 4 divisors (see below), whose sum is σ = 16016293608. Its totient is φ = 8008146800.

The previous prime is 12012220159. The next prime is 12012220243. The reversal of 12012220203 is 30202221021.

It is a happy number.

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 12012220203 - 2¹³ = 12012212011 is a prime.

It is a super-2 number, since 2×12012220203² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12012220243) 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, 2002036698 + ... + 2002036703.

It is an arithmetic number, because the mean of its divisors is an integer number (4004073402).

Almost surely, 2^12012220203 is an apocalyptic number.

12012220203 is a deficient number, since it is larger than the sum of its proper divisors (4004073405).

12012220203 is an equidigital number, since it uses as much as digits as its factorization.

12012220203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4004073404.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12012220203 its reverse (30202221021), we get a palindrome (42214441224).

The spelling of 12012220203 in words is "twelve billion, twelve million, two hundred twenty thousand, two hundred three".