121144074544 has 40 divisors (see below), whose sum is σ = 248583844080. Its totient is φ = 56995135488.

The previous prime is 121144074539. The next prime is 121144074581. The reversal of 121144074544 is 445470441121.

It is a super-3 number, since 3×121144074544³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1114687 + ... + 1218529.

It is an arithmetic number, because the mean of its divisors is an integer number (6214596102).

Almost surely, 2^121144074544 is an apocalyptic number.

It is an amenable number.

121144074544 is an abundant number, since it is smaller than the sum of its proper divisors (127439769536).

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

121144074544 is a wasteful number, since it uses less digits than its factorization.

121144074544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108157 (or 108151 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 37.

The spelling of 121144074544 in words is "one hundred twenty-one billion, one hundred forty-four million, seventy-four thousand, five hundred forty-four".