121223211303 has 8 divisors (see below), whose sum is σ = 161819113600. Its totient is φ = 80721391608.

The previous prime is 121223211293. The next prime is 121223211311. The reversal of 121223211303 is 303112322121.

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

It is not a de Polignac number, because 121223211303 - 2²⁰ = 121222162727 is a prime.

It is a super-2 number, since 2×121223211303² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121223211303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121223211313) 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, 23517643 + ... + 23522796.

It is an arithmetic number, because the mean of its divisors is an integer number (20227389200).

Almost surely, 2^121223211303 is an apocalyptic number.

121223211303 is a deficient number, since it is larger than the sum of its proper divisors (40595902297).

121223211303 is an equidigital number, since it uses as much as digits as its factorization.

121223211303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47041301.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 121223211303 its reverse (303112322121), we get a palindrome (424335533424).

The spelling of 121223211303 in words is "one hundred twenty-one billion, two hundred twenty-three million, two hundred eleven thousand, three hundred three".