121221030332103 has 16 divisors (see below), whose sum is σ = 174061185760896. Its totient is φ = 74597463214560.

The previous prime is 121221030332099. The next prime is 121221030332117. The reversal of 121221030332103 is 301233030122121.

It is not a de Polignac number, because 121221030332103 - 2² = 121221030332099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121221030336103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41815288 + ... + 44620178.

It is an arithmetic number, because the mean of its divisors is an integer number (10878824110056).

Almost surely, 2^{121221030332103} is an apocalyptic number.

121221030332103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121221030332103 is a deficient number, since it is larger than the sum of its proper divisors (52840155428793).

121221030332103 is a wasteful number, since it uses less digits than its factorization.

121221030332103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3913054.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 121221030332103 its reverse (301233030122121), we get a palindrome (422454060454224).

The spelling of 121221030332103 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, thirty million, three hundred thirty-two thousand, one hundred three".