2102120011002 has 16 divisors (see below), whose sum is σ = 4586443660512. Its totient is φ = 637006063920.

The previous prime is 2102120010931. The next prime is 2102120011003. The reversal of 2102120011002 is 2001100212012.

It is not an unprimeable number, because it can be changed into a prime (2102120011003) 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 7 ways as a sum of consecutive naturals, for example, 15925151533 + ... + 15925151664.

It is an arithmetic number, because the mean of its divisors is an integer number (286652728782).

Almost surely, 2^{2102120011002} is an apocalyptic number.

2102120011002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2102120011002 is an abundant number, since it is smaller than the sum of its proper divisors (2484323649510).

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

2102120011002 is a wasteful number, since it uses less digits than its factorization.

2102120011002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31850303213.

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

Adding to 2102120011002 its reverse (2001100212012), we get a palindrome (4103220223014).

The spelling of 2102120011002 in words is "two trillion, one hundred two billion, one hundred twenty million, eleven thousand, two".