2001012010111 has 16 divisors (see below), whose sum is σ = 2044279202688. Its totient is φ = 1957952505600.

The previous prime is 2001012010091. The next prime is 2001012010133. The reversal of 2001012010111 is 1110102101002.

It is a cyclic number.

It is not a de Polignac number, because 2001012010111 - 2⁵ = 2001012010079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001012070111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65247121 + ... + 65277781.

It is an arithmetic number, because the mean of its divisors is an integer number (127767450168).

Almost surely, 2^{2001012010111} is an apocalyptic number.

2001012010111 is a deficient number, since it is larger than the sum of its proper divisors (43267192577).

2001012010111 is a wasteful number, since it uses less digits than its factorization.

2001012010111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34002.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 2001012010111 its reverse (1110102101002), we get a palindrome (3111114111113).

The spelling of 2001012010111 in words is "two trillion, one billion, twelve million, ten thousand, one hundred eleven".