121050720 has 192 divisors, whose sum is σ = 484323840. Its totient is φ = 27661824.

The previous prime is 121050707. The next prime is 121050731. The reversal of 121050720 is 27050121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 121050693 and 121050702.

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, 28239 + ... + 32241.

It is an arithmetic number, because the mean of its divisors is an integer number (2522520).

Almost surely, 2^121050720 is an apocalyptic number.

121050720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121050720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242161920).

121050720 is an abundant number, since it is smaller than the sum of its proper divisors (363273120).

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

121050720 is a wasteful number, since it uses less digits than its factorization.

121050720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4034 (or 4020 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 121050720 is about 11002.3052129997. The cubic root of 121050720 is about 494.6778436393.

The spelling of 121050720 in words is "one hundred twenty-one million, fifty thousand, seven hundred twenty".