2011012010001 has 12 divisors (see below), whose sum is σ = 2904808168912. Its totient is φ = 1340668653336.

The previous prime is 2011012009961. The next prime is 2011012010081. The reversal of 2011012010001 is 1000102101102.

It is a happy number.

It is not a de Polignac number, because 2011012010001 - 2⁷ = 2011012009873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011012010081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2668170 + ... + 3337836.

Almost surely, 2^{2011012010001} is an apocalyptic number.

It is an amenable number.

2011012010001 is a deficient number, since it is larger than the sum of its proper divisors (893796158911).

2011012010001 is a wasteful number, since it uses less digits than its factorization.

2011012010001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003340 (or 1003337 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 2011012010001 its reverse (1000102101102), we get a palindrome (3011114111103).

The spelling of 2011012010001 in words is "two trillion, eleven billion, twelve million, ten thousand, one".