121986244 has 12 divisors (see below), whose sum is σ = 218018304. Its totient is φ = 59695304.

The previous prime is 121986223. The next prime is 121986253. The reversal of 121986244 is 442689121.

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, 324244 + ... + 324619.

It is an arithmetic number, because the mean of its divisors is an integer number (18168192).

Almost surely, 2^121986244 is an apocalyptic number.

It is an amenable number.

121986244 is a deficient number, since it is larger than the sum of its proper divisors (96032060).

121986244 is a wasteful number, since it uses less digits than its factorization.

121986244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648914 (or 648912 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 121986244 is about 11044.7382947719. The cubic root of 121986244 is about 495.9489248917.

The spelling of 121986244 in words is "one hundred twenty-one million, nine hundred eighty-six thousand, two hundred forty-four".