2101012120011 has 32 divisors (see below), whose sum is σ = 3309770050048. Its totient is φ = 1160568622080.

The previous prime is 2101012120007. The next prime is 2101012120037. The reversal of 2101012120011 is 1100212101012.

It is not a de Polignac number, because 2101012120011 - 2² = 2101012120007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2101012120211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11905720 + ... + 12080901.

It is an arithmetic number, because the mean of its divisors is an integer number (103430314064).

Almost surely, 2^{2101012120011} is an apocalyptic number.

2101012120011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2101012120011 is a deficient number, since it is larger than the sum of its proper divisors (1208757930037).

2101012120011 is a wasteful number, since it uses less digits than its factorization.

2101012120011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23986771.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 2101012120011 its reverse (1100212101012), we get a palindrome (3201224221023).

The spelling of 2101012120011 in words is "two trillion, one hundred one billion, twelve million, one hundred twenty thousand, eleven".