121444450 has 12 divisors (see below), whose sum is σ = 225886770. Its totient is φ = 48577760.

The previous prime is 121444441. The next prime is 121444451. The reversal of 121444450 is 54444121.

It can be written as a sum of positive squares in 3 ways, for example, as 89056969 + 32387481 = 9437^2 + 5691^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (121444451) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1214395 + ... + 1214494.

Almost surely, 2^121444450 is an apocalyptic number.

121444450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121444450 is a deficient number, since it is larger than the sum of its proper divisors (104442320).

121444450 is a wasteful number, since it uses less digits than its factorization.

121444450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2428901 (or 2428896 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 121444450 is about 11020.1837552738. The cubic root of 121444450 is about 495.2135934990.

Adding to 121444450 its reverse (54444121), we get a palindrome (175888571).

The spelling of 121444450 in words is "one hundred twenty-one million, four hundred forty-four thousand, four hundred fifty".