121444042 has 4 divisors (see below), whose sum is σ = 182166066. Its totient is φ = 60722020.

The previous prime is 121444033. The next prime is 121444049. The reversal of 121444042 is 240444121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 87815641 + 33628401 = 9371^2 + 5799^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (121444049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30361009 + ... + 30361012.

Almost surely, 2^121444042 is an apocalyptic number.

121444042 is a deficient number, since it is larger than the sum of its proper divisors (60722024).

121444042 is an equidigital number, since it uses as much as digits as its factorization.

121444042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60722023.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 121444042 is about 11020.1652437702. The cubic root of 121444042 is about 495.2130389317.

Adding to 121444042 its reverse (240444121), we get a palindrome (361888163).

The spelling of 121444042 in words is "one hundred twenty-one million, four hundred forty-four thousand, forty-two".