121341441220 has 24 divisors (see below), whose sum is σ = 257680143000. Its totient is φ = 47991220992.

The previous prime is 121341441203. The next prime is 121341441253. The reversal of 121341441220 is 22144143121.

It can be written as a sum of positive squares in 4 ways, for example, as 31337604 + 121310103616 = 5598^2 + 348296^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34082895 + ... + 34086454.

It is an arithmetic number, because the mean of its divisors is an integer number (10736672625).

Almost surely, 2^121341441220 is an apocalyptic number.

121341441220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121341441220 is an abundant number, since it is smaller than the sum of its proper divisors (136338701780).

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

121341441220 is a wasteful number, since it uses less digits than its factorization.

121341441220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68169447 (or 68169445 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 121341441220 its reverse (22144143121), we get a palindrome (143485584341).

The spelling of 121341441220 in words is "one hundred twenty-one billion, three hundred forty-one million, four hundred forty-one thousand, two hundred twenty".