121067280 has 120 divisors (see below), whose sum is σ = 409270680. Its totient is φ = 32071680.

The previous prime is 121067213. The next prime is 121067291. The reversal of 121067280 is 82760121.

It can be written as a sum of positive squares in 4 ways, for example, as 13571856 + 107495424 = 3684^2 + 10368^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129856 + ... + 130784.

It is an arithmetic number, because the mean of its divisors is an integer number (3410589).

Almost surely, 2^121067280 is an apocalyptic number.

121067280 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 121067280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204635340).

121067280 is an abundant number, since it is smaller than the sum of its proper divisors (288203400).

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

121067280 is a wasteful number, since it uses less digits than its factorization.

121067280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129 (or 1120 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 121067280 is about 11003.0577568238. The cubic root of 121067280 is about 494.7004002766.

The spelling of 121067280 in words is "one hundred twenty-one million, sixty-seven thousand, two hundred eighty".