121120330121 has 4 divisors (see below), whose sum is σ = 138423234432. Its totient is φ = 103817425812.

The previous prime is 121120330099. The next prime is 121120330127. The reversal of 121120330121 is 121033021121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121033021121 = 37 ⋅3271162733.

It is a cyclic number.

It is not a de Polignac number, because 121120330121 - 2⁶ = 121120330057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121120330121.

It is not an unprimeable number, because it can be changed into a prime (121120330127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8651452145 + ... + 8651452158.

It is an arithmetic number, because the mean of its divisors is an integer number (34605808608).

Almost surely, 2^121120330121 is an apocalyptic number.

It is an amenable number.

121120330121 is a deficient number, since it is larger than the sum of its proper divisors (17302904311).

121120330121 is an equidigital number, since it uses as much as digits as its factorization.

121120330121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17302904310.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 121120330121 its reverse (121033021121), we get a palindrome (242153351242).

The spelling of 121120330121 in words is "one hundred twenty-one billion, one hundred twenty million, three hundred thirty thousand, one hundred twenty-one".