9012111001 has 4 divisors (see below), whose sum is σ = 9012759552. Its totient is φ = 9011462452.

The previous prime is 9012110981. The next prime is 9012111007. The reversal of 9012111001 is 1001112109.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9012111001 - 2¹³ = 9012102809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9012111007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302965 + ... + 331378.

It is an arithmetic number, because the mean of its divisors is an integer number (2253189888).

Almost surely, 2^9012111001 is an apocalyptic number.

It is an amenable number.

9012111001 is a deficient number, since it is larger than the sum of its proper divisors (648551).

9012111001 is a wasteful number, since it uses less digits than its factorization.

9012111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648550.

The product of its (nonzero) digits is 18, while the sum is 16.

The square root of 9012111001 is about 94932.1389256557. The cubic root of 9012111001 is about 2081.0164380791.

The spelling of 9012111001 in words is "nine billion, twelve million, one hundred eleven thousand, one".