121028450 has 12 divisors (see below), whose sum is σ = 225113010. Its totient is φ = 48411360.

The previous prime is 121028447. The next prime is 121028459. The reversal of 121028450 is 54820121.

It can be written as a sum of positive squares in 3 ways, for example, as 101747569 + 19280881 = 10087^2 + 4391^2 .

It is not an unprimeable number, because it can be changed into a prime (121028459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1210235 + ... + 1210334.

Almost surely, 2^121028450 is an apocalyptic number.

121028450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121028450 is a deficient number, since it is larger than the sum of its proper divisors (104084560).

121028450 is a wasteful number, since it uses less digits than its factorization.

121028450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2420581 (or 2420576 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 121028450 is about 11001.2931058126. The cubic root of 121028450 is about 494.6475060771.

Adding to 121028450 its reverse (54820121), we get a palindrome (175848571).

The spelling of 121028450 in words is "one hundred twenty-one million, twenty-eight thousand, four hundred fifty".