121230332113221 has 24 divisors (see below), whose sum is σ = 176409506080704. Its totient is φ = 80220810231360.

The previous prime is 121230332113217. The next prime is 121230332113279. The reversal of 121230332113221 is 122311233032121.

121230332113221 is a `hidden beast` number, since 1 + 2 + 1 + 2 + 3 + 0 + 332 + 1 + 1 + 322 + 1 = 666.

It is not a de Polignac number, because 121230332113221 - 2² = 121230332113217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121230332113211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4633656 + ... + 16245966.

It is an arithmetic number, because the mean of its divisors is an integer number (7350396086696).

Almost surely, 2^{121230332113221} is an apocalyptic number.

It is an amenable number.

121230332113221 is a deficient number, since it is larger than the sum of its proper divisors (55179173967483).

121230332113221 is a wasteful number, since it uses less digits than its factorization.

121230332113221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11620921 (or 11620918 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 121230332113221 its reverse (122311233032121), we get a palindrome (243541565145342).

The spelling of 121230332113221 in words is "one hundred twenty-one trillion, two hundred thirty billion, three hundred thirty-two million, one hundred thirteen thousand, two hundred twenty-one".