1001092121 has 8 divisors (see below), whose sum is σ = 1079484000. Its totient is φ = 925270560.

The previous prime is 1001092087. The next prime is 1001092153. The reversal of 1001092121 is 1212901001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001092121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1001092121.

It is not an unprimeable number, because it can be changed into a prime (1001092171) by changing a digit.

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, 641771 + ... + 643328.

It is an arithmetic number, because the mean of its divisors is an integer number (134935500).

Almost surely, 2^1001092121 is an apocalyptic number.

It is an amenable number.

1001092121 is a deficient number, since it is larger than the sum of its proper divisors (78391879).

1001092121 is a wasteful number, since it uses less digits than its factorization.

1001092121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285159.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 1001092121 is about 31640.0398387865. The cubic root of 1001092121 is about 1000.3639078883.

Adding to 1001092121 its reverse (1212901001), we get a palindrome (2213993122).

The spelling of 1001092121 in words is "one billion, one million, ninety-two thousand, one hundred twenty-one".