12121003223 has 8 divisors (see below), whose sum is σ = 13855893792. Its totient is φ = 10386942336.

The previous prime is 12121003177. The next prime is 12121003249. The reversal of 12121003223 is 32230012121.

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 12121003223 - 2⁶ = 12121003159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121093223) 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, 175790 + ... + 234827.

It is an arithmetic number, because the mean of its divisors is an integer number (1731986724).

Almost surely, 2^12121003223 is an apocalyptic number.

12121003223 is a deficient number, since it is larger than the sum of its proper divisors (1734890569).

12121003223 is an equidigital number, since it uses as much as digits as its factorization.

12121003223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414841.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12121003223 its reverse (32230012121), we get a palindrome (44351015344).

The spelling of 12121003223 in words is "twelve billion, one hundred twenty-one million, three thousand, two hundred twenty-three".