121230213024 has 96 divisors (see below), whose sum is σ = 327647871936. Its totient is φ = 39224084480.

The previous prime is 121230212993. The next prime is 121230213031. The reversal of 121230213024 is 420312032121.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 697219 + ... + 853565.

It is an arithmetic number, because the mean of its divisors is an integer number (3412998666).

Almost surely, 2^121230213024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121230213024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163823935968).

121230213024 is an abundant number, since it is smaller than the sum of its proper divisors (206417658912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121230213024 is a wasteful number, since it uses less digits than its factorization.

121230213024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156598 (or 156590 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 121230213024 its reverse (420312032121), we get a palindrome (541542245145).

The spelling of 121230213024 in words is "one hundred twenty-one billion, two hundred thirty million, two hundred thirteen thousand, twenty-four".