121220120200303 has 32 divisors (see below), whose sum is σ = 125346009600000. Its totient is φ = 117175597733376.

The previous prime is 121220120200279. The next prime is 121220120200339. The reversal of 121220120200303 is 303002021022121.

It is not a de Polignac number, because 121220120200303 - 2⁹ = 121220120199791 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 (121220120200373) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1275967198 + ... + 1276062196.

It is an arithmetic number, because the mean of its divisors is an integer number (3917062800000).

Almost surely, 2^{121220120200303} is an apocalyptic number.

121220120200303 is a deficient number, since it is larger than the sum of its proper divisors (4125889399697).

121220120200303 is a wasteful number, since it uses less digits than its factorization.

121220120200303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96391.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 121220120200303 its reverse (303002021022121), we get a palindrome (424222141222424).

The spelling of 121220120200303 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred twenty million, two hundred thousand, three hundred three".