12121210203 has 8 divisors (see below), whose sum is σ = 16188507216. Its totient is φ = 8067360000.

The previous prime is 12121210177. The next prime is 12121210207. The reversal of 12121210203 is 30201212121.

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

It is not a de Polignac number, because 12121210203 - 2⁶ = 12121210139 is a prime.

It is a super-2 number, since 2×12121210203² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12121210207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3359598 + ... + 3363203.

It is an arithmetic number, because the mean of its divisors is an integer number (2023563402).

Almost surely, 2^12121210203 is an apocalyptic number.

12121210203 is a deficient number, since it is larger than the sum of its proper divisors (4067297013).

12121210203 is an equidigital number, since it uses as much as digits as its factorization.

12121210203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6723405.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12121210203 its reverse (30201212121), we get a palindrome (42322422324).

The spelling of 12121210203 in words is "twelve billion, one hundred twenty-one million, two hundred ten thousand, two hundred three".