1000121244 has 12 divisors (see below), whose sum is σ = 2333616264. Its totient is φ = 333373744.

The previous prime is 1000121197. The next prime is 1000121257. The reversal of 1000121244 is 4421210001.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 41671707 + ... + 41671730.

It is an arithmetic number, because the mean of its divisors is an integer number (194468022).

Almost surely, 2^1000121244 is an apocalyptic number.

It is an amenable number.

1000121244 is an abundant number, since it is smaller than the sum of its proper divisors (1333495020).

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

1000121244 is a wasteful number, since it uses less digits than its factorization.

1000121244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83343444 (or 83343442 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1000121244 is about 31624.6935795432. The cubic root of 1000121244 is about 1000.0404130334.

Adding to 1000121244 its reverse (4421210001), we get a palindrome (5421331245).

The spelling of 1000121244 in words is "one billion, one hundred twenty-one thousand, two hundred forty-four".