121282056 has 128 divisors (see below), whose sum is σ = 393120000. Its totient is φ = 34630848.

The previous prime is 121282033. The next prime is 121282061. The reversal of 121282056 is 650282121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 31 ways as a sum of consecutive naturals, for example, 73270 + ... + 74906.

It is an arithmetic number, because the mean of its divisors is an integer number (3071250).

Almost surely, 2^121282056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121282056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196560000).

121282056 is an abundant number, since it is smaller than the sum of its proper divisors (271837944).

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

121282056 is a wasteful number, since it uses less digits than its factorization.

121282056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673 (or 1649 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 121282056 is about 11012.8132645569. The cubic root of 121282056 is about 494.9927638979.

The spelling of 121282056 in words is "one hundred twenty-one million, two hundred eighty-two thousand, fifty-six".