12021120003 has 4 divisors (see below), whose sum is σ = 16028160008. Its totient is φ = 8014080000.

The previous prime is 12021119969. The next prime is 12021120061. The reversal of 12021120003 is 30002112021.

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

It is not a de Polignac number, because 12021120003 - 2¹⁸ = 12020857859 is a prime.

It is a super-2 number, since 2×12021120003² (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 (12021120403) 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, 2003519998 + ... + 2003520003.

It is an arithmetic number, because the mean of its divisors is an integer number (4007040002).

Almost surely, 2^12021120003 is an apocalyptic number.

12021120003 is a deficient number, since it is larger than the sum of its proper divisors (4007040005).

12021120003 is an equidigital number, since it uses as much as digits as its factorization.

12021120003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4007040004.

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

Adding to 12021120003 its reverse (30002112021), we get a palindrome (42023232024).

The spelling of 12021120003 in words is "twelve billion, twenty-one million, one hundred twenty thousand, three".