2102120001012 has 48 divisors (see below), whose sum is σ = 4948786644480. Its totient is φ = 694467766368.

The previous prime is 2102120001011. The next prime is 2102120001031. The reversal of 2102120001012 is 2101000212012.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102120001011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 794598 + ... + 2199005.

It is an arithmetic number, because the mean of its divisors is an integer number (103099721760).

Almost surely, 2^{2102120001012} is an apocalyptic number.

It is an amenable number.

2102120001012 is an abundant number, since it is smaller than the sum of its proper divisors (2846666643468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2102120001012 is a wasteful number, since it uses less digits than its factorization.

2102120001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2994132 (or 2994130 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2102120001012 its reverse (2101000212012), we get a palindrome (4203120213024).

The spelling of 2102120001012 in words is "two trillion, one hundred two billion, one hundred twenty million, one thousand, twelve".