121121140024444 has 48 divisors (see below), whose sum is σ = 247091262824448. Its totient is φ = 50879841259968.

The previous prime is 121121140024411. The next prime is 121121140024453. The reversal of 121121140024444 is 444420041121121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204891979 + ... + 205482274.

It is an arithmetic number, because the mean of its divisors is an integer number (5147734642176).

Almost surely, 2^{121121140024444} is an apocalyptic number.

121121140024444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

121121140024444 is an abundant number, since it is smaller than the sum of its proper divisors (125970122800004).

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

121121140024444 is a wasteful number, since it uses less digits than its factorization.

121121140024444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410374474 (or 410374472 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 31.

Adding to 121121140024444 its reverse (444420041121121), we get a palindrome (565541181145565).

The spelling of 121121140024444 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, one hundred forty million, twenty-four thousand, four hundred forty-four".