9012112002001 has 4 divisors (see below), whose sum is σ = 9024646233600. Its totient is φ = 8999577770404.

The previous prime is 9012112001951. The next prime is 9012112002067. The reversal of 9012112002001 is 1002002112109.

It is a happy number.

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 9012112002001 - 2¹³ = 9012111993809 is a prime.

It is a super-2 number, since 2×9012112002001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9012112002001.

It is not an unprimeable number, because it can be changed into a prime (9012112002071) 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, 6267114721 + ... + 6267116158.

It is an arithmetic number, because the mean of its divisors is an integer number (2256161558400).

Almost surely, 2^{9012112002001} is an apocalyptic number.

It is an amenable number.

9012112002001 is a deficient number, since it is larger than the sum of its proper divisors (12534231599).

9012112002001 is a wasteful number, since it uses less digits than its factorization.

9012112002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12534231598.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 9012112002001 in words is "nine trillion, twelve billion, one hundred twelve million, two thousand, one".