1000121242 has 16 divisors (see below), whose sum is σ = 1510007040. Its totient is φ = 496796688.

The previous prime is 1000121197. The next prime is 1000121257. The reversal of 1000121242 is 2421210001.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 200859 + ... + 205777.

It is an arithmetic number, because the mean of its divisors is an integer number (94375440).

Almost surely, 2^1000121242 is an apocalyptic number.

1000121242 is a deficient number, since it is larger than the sum of its proper divisors (509885798).

1000121242 is a wasteful number, since it uses less digits than its factorization.

1000121242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5565.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1000121242 is about 31624.6935479223. The cubic root of 1000121242 is about 1000.0404123668.

Adding to 1000121242 its reverse (2421210001), we get a palindrome (3421331243).

The spelling of 1000121242 in words is "one billion, one hundred twenty-one thousand, two hundred forty-two".