121343400224 has 24 divisors (see below), whose sum is σ = 252947456748. Its totient is φ = 57102776320.

The previous prime is 121343400203. The next prime is 121343400247. The reversal of 121343400224 is 422004343121.

121343400224 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 119071924624 + 2271475600 = 345068^2 + 47660^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121343400193 and 121343400202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111528317 + ... + 111529404.

Almost surely, 2^121343400224 is an apocalyptic number.

It is an amenable number.

121343400224 is an abundant number, since it is smaller than the sum of its proper divisors (131604056524).

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

121343400224 is a wasteful number, since it uses less digits than its factorization.

121343400224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223057748 (or 223057740 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 121343400224 its reverse (422004343121), we get a palindrome (543347743345).

The spelling of 121343400224 in words is "one hundred twenty-one billion, three hundred forty-three million, four hundred thousand, two hundred twenty-four".