121331103332121 has 12 divisors (see below), whose sum is σ = 175256149417648. Its totient is φ = 80887350865464.

The previous prime is 121331103332083. The next prime is 121331103332207. The reversal of 121331103332121 is 121233301133121.

121331103332121 is a `hidden beast` number, since 1 + 2 + 1 + 3 + 3 + 110 + 333 + 212 + 1 = 666.

It is not a de Polignac number, because 121331103332121 - 2⁶ = 121331103332057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121331103330121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15489486 + ... + 21967848.

Almost surely, 2^{121331103332121} is an apocalyptic number.

It is an amenable number.

121331103332121 is a deficient number, since it is larger than the sum of its proper divisors (53925046085527).

121331103332121 is a wasteful number, since it uses less digits than its factorization.

121331103332121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8559332 (or 8559329 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

Adding to 121331103332121 its reverse (121233301133121), we get a palindrome (242564404465242).

The spelling of 121331103332121 in words is "one hundred twenty-one trillion, three hundred thirty-one billion, one hundred three million, three hundred thirty-two thousand, one hundred twenty-one".