2102012218080 has 144 divisors (see below), whose sum is σ = 7175268696960. Its totient is φ = 560368425984.

The previous prime is 2102012218079. The next prime is 2102012218081. The reversal of 2102012218080 is 808122102012.

It is an interprime number because it is at equal distance from previous prime (2102012218079) and next prime (2102012218081).

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102012218081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4619674 + ... + 5054246.

It is an arithmetic number, because the mean of its divisors is an integer number (49828254840).

Almost surely, 2^{2102012218080} is an apocalyptic number.

2102012218080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2102012218080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3587634348480).

2102012218080 is an abundant number, since it is smaller than the sum of its proper divisors (5073256478880).

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

2102012218080 is a wasteful number, since it uses less digits than its factorization.

2102012218080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437953 (or 437942 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The spelling of 2102012218080 in words is "two trillion, one hundred two billion, twelve million, two hundred eighteen thousand, eighty".