121724116 has 12 divisors (see below), whose sum is σ = 213095988. Its totient is φ = 60839552.

The previous prime is 121724101. The next prime is 121724123. The reversal of 121724116 is 611427121.

It can be written as a sum of positive squares in 2 ways, for example, as 21123216 + 100600900 = 4596^2 + 10030^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14700 + ... + 21436.

It is an arithmetic number, because the mean of its divisors is an integer number (17757999).

Almost surely, 2^121724116 is an apocalyptic number.

It is an amenable number.

121724116 is a deficient number, since it is larger than the sum of its proper divisors (91371872).

121724116 is a wasteful number, since it uses less digits than its factorization.

121724116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11258 (or 11256 counting only the distinct ones).

The product of its digits is 672, while the sum is 25.

The square root of 121724116 is about 11032.8652670102. The cubic root of 121724116 is about 495.5934330908.

The spelling of 121724116 in words is "one hundred twenty-one million, seven hundred twenty-four thousand, one hundred sixteen".