121310330221 has 8 divisors (see below), whose sum is σ = 122045938560. Its totient is φ = 120574831728.

The previous prime is 121310330179. The next prime is 121310330227. The reversal of 121310330221 is 122033013121.

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

It is a cyclic number.

It is not a de Polignac number, because 121310330221 - 2⁹ = 121310329709 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 (121310330227) 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, 3752595 + ... + 3784783.

It is an arithmetic number, because the mean of its divisors is an integer number (15255742320).

Almost surely, 2^121310330221 is an apocalyptic number.

It is an amenable number.

121310330221 is a deficient number, since it is larger than the sum of its proper divisors (735608339).

121310330221 is a wasteful number, since it uses less digits than its factorization.

121310330221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54923.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 121310330221 its reverse (122033013121), we get a palindrome (243343343342).

The spelling of 121310330221 in words is "one hundred twenty-one billion, three hundred ten million, three hundred thirty thousand, two hundred twenty-one".