2012102120101 has 4 divisors (see below), whose sum is σ = 2012141467872. Its totient is φ = 2012062772332.

The previous prime is 2012102120099. The next prime is 2012102120107. The reversal of 2012102120101 is 1010212012102.

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 not a de Polignac number, because 2012102120101 - 2¹ = 2012102120099 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 (2012102120107) 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, 19597081 + ... + 19699486.

It is an arithmetic number, because the mean of its divisors is an integer number (503035366968).

Almost surely, 2^{2012102120101} is an apocalyptic number.

It is an amenable number.

2012102120101 is a deficient number, since it is larger than the sum of its proper divisors (39347771).

2012102120101 is an equidigital number, since it uses as much as digits as its factorization.

2012102120101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39347770.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2012102120101 its reverse (1010212012102), we get a palindrome (3022314132203).

It can be divided in two parts, 20 and 12102120101, that added together give a palindrome (12102120121).

The spelling of 2012102120101 in words is "two trillion, twelve billion, one hundred two million, one hundred twenty thousand, one hundred one".