2012101111001 has 4 divisors (see below), whose sum is σ = 2012348823312. Its totient is φ = 2011853398692.

The previous prime is 2012101110953. The next prime is 2012101111019. The reversal of 2012101111001 is 1001111012102.

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 a de Polignac number, because none of the positive numbers 2^k-2012101111001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2012101111021) 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, 123843971 + ... + 123860216.

It is an arithmetic number, because the mean of its divisors is an integer number (503087205828).

Almost surely, 2^{2012101111001} is an apocalyptic number.

It is an amenable number.

2012101111001 is a deficient number, since it is larger than the sum of its proper divisors (247712311).

2012101111001 is an equidigital number, since it uses as much as digits as its factorization.

2012101111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247712310.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 2012101111001 its reverse (1001111012102), we get a palindrome (3013212123103).

The spelling of 2012101111001 in words is "two trillion, twelve billion, one hundred one million, one hundred eleven thousand, one".