121241004224 has 56 divisors (see below), whose sum is σ = 249575726400. Its totient is φ = 58393221120.

The previous prime is 121241004223. The next prime is 121241004259. The reversal of 121241004224 is 422400142121.

It is a super-2 number, since 2×121241004224² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121241004224.

It is not an unprimeable number, because it can be changed into a prime (121241004221) 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, 85139 + ... + 499730.

It is an arithmetic number, because the mean of its divisors is an integer number (4456709400).

Almost surely, 2^121241004224 is an apocalyptic number.

It is an amenable number.

121241004224 is an abundant number, since it is smaller than the sum of its proper divisors (128334722176).

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

121241004224 is an equidigital number, since it uses as much as digits as its factorization.

121241004224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585001 (or 584991 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 121241004224 its reverse (422400142121), we get a palindrome (543641146345).

The spelling of 121241004224 in words is "one hundred twenty-one billion, two hundred forty-one million, four thousand, two hundred twenty-four".