2101012120001 has 4 divisors (see below), whose sum is σ = 2105029352112. Its totient is φ = 2096994887892.

The previous prime is 2101012119977. The next prime is 2101012120007. The reversal of 2101012120001 is 1000212101012.

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-2101012120001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101012120007) 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, 2008615271 + ... + 2008616316.

It is an arithmetic number, because the mean of its divisors is an integer number (526257338028).

Almost surely, 2^{2101012120001} is an apocalyptic number.

It is an amenable number.

2101012120001 is a deficient number, since it is larger than the sum of its proper divisors (4017232111).

2101012120001 is an equidigital number, since it uses as much as digits as its factorization.

2101012120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4017232110.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2101012120001 its reverse (1000212101012), we get a palindrome (3101224221013).

The spelling of 2101012120001 in words is "two trillion, one hundred one billion, twelve million, one hundred twenty thousand, one".