121872852240 has 80 divisors (see below), whose sum is σ = 379723785408. Its totient is φ = 32334443008.

The previous prime is 121872852239. The next prime is 121872852347. The reversal of 121872852240 is 42258278121.

It is a happy number.

121872852240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×121872852240² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121872852192 and 121872852201.

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 15 ways as a sum of consecutive naturals, for example, 1241562 + ... + 1336121.

Almost surely, 2^121872852240 is an apocalyptic number.

121872852240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121872852240 is an abundant number, since it is smaller than the sum of its proper divisors (257850933168).

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

121872852240 is a wasteful number, since it uses less digits than its factorization.

121872852240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2577896 (or 2577890 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 42.

The spelling of 121872852240 in words is "one hundred twenty-one billion, eight hundred seventy-two million, eight hundred fifty-two thousand, two hundred forty".