1001134221 has 8 divisors (see below), whose sum is σ = 1335195264. Its totient is φ = 667248000.

The previous prime is 1001134217. The next prime is 1001134223. The reversal of 1001134221 is 1224311001.

1001134221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1001134221 - 2² = 1001134217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1001134221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001134223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29701 + ... + 53706.

It is an arithmetic number, because the mean of its divisors is an integer number (166899408).

Almost surely, 2^1001134221 is an apocalyptic number.

It is an amenable number.

1001134221 is a deficient number, since it is larger than the sum of its proper divisors (334061043).

1001134221 is an equidigital number, since it uses as much as digits as its factorization.

1001134221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87411.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1001134221 is about 31640.7051280467. The cubic root of 1001134221 is about 1000.3779308170.

Adding to 1001134221 its reverse (1224311001), we get a palindrome (2225445222).

The spelling of 1001134221 in words is "one billion, one million, one hundred thirty-four thousand, two hundred twenty-one".