121402071184 has 15 divisors (see below), whose sum is σ = 235219213267. Its totient is φ = 60700338736.

The previous prime is 121402071179. The next prime is 121402071209. The reversal of 121402071184 is 481170204121.

The square root of 121402071184 is 348428.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1350159 + ... + 1437265.

Almost surely, 2^121402071184 is an apocalyptic number.

121402071184 is the 348428-th square number.

It is an amenable number.

121402071184 is a deficient number, since it is larger than the sum of its proper divisors (113817142083).

121402071184 is an frugal number, since it uses more digits than its factorization.

121402071184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174222 (or 87109 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 31.

The spelling of 121402071184 in words is "one hundred twenty-one billion, four hundred two million, seventy-one thousand, one hundred eighty-four".