121224044142 has 48 divisors (see below), whose sum is σ = 278134028640. Its totient is φ = 38026722816.

The previous prime is 121224044111. The next prime is 121224044167. The reversal of 121224044142 is 241440422121.

121224044142 is a `hidden beast` number, since 1 + 2 + 1 + 2 + 240 + 4 + 414 + 2 = 666.

121224044142 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3604159 + ... + 3637637.

It is an arithmetic number, because the mean of its divisors is an integer number (5794458930).

Almost surely, 2^121224044142 is an apocalyptic number.

121224044142 is an abundant number, since it is smaller than the sum of its proper divisors (156909984498).

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

121224044142 is a wasteful number, since it uses less digits than its factorization.

121224044142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45337 (or 45334 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 121224044142 its reverse (241440422121), we get a palindrome (362664466263).

The spelling of 121224044142 in words is "one hundred twenty-one billion, two hundred twenty-four million, forty-four thousand, one hundred forty-two".