121345404224 has 56 divisors (see below), whose sum is σ = 262739221536. Its totient is φ = 55145664000.

The previous prime is 121345404223. The next prime is 121345404239. The reversal of 121345404224 is 422404543121.

121345404224 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121345404223) 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, 4083179 + ... + 4112789.

Almost surely, 2^121345404224 is an apocalyptic number.

It is an amenable number.

121345404224 is an abundant number, since it is smaller than the sum of its proper divisors (141393817312).

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

121345404224 is a wasteful number, since it uses less digits than its factorization.

121345404224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35455 (or 35445 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 121345404224 its reverse (422404543121), we get a palindrome (543749947345).

The spelling of 121345404224 in words is "one hundred twenty-one billion, three hundred forty-five million, four hundred four thousand, two hundred twenty-four".