121041324220 has 48 divisors (see below), whose sum is σ = 261137465568. Its totient is φ = 47099402240.

The previous prime is 121041324199. The next prime is 121041324221. The reversal of 121041324220 is 22423140121.

It is a junction number, because it is equal to n+sod(n) for n = 121041324191 and 121041324200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121041324221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71844 + ... + 497236.

It is an arithmetic number, because the mean of its divisors is an integer number (5440363866).

Almost surely, 2^121041324220 is an apocalyptic number.

121041324220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121041324220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130568732784).

121041324220 is an abundant number, since it is smaller than the sum of its proper divisors (140096141348).

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

121041324220 is a wasteful number, since it uses less digits than its factorization.

121041324220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425790 (or 425788 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 121041324220 its reverse (22423140121), we get a palindrome (143464464341).

The spelling of 121041324220 in words is "one hundred twenty-one billion, forty-one million, three hundred twenty-four thousand, two hundred twenty".