2102112212178 has 64 divisors (see below), whose sum is σ = 4596437809152. Its totient is φ = 635614322880.

The previous prime is 2102112212177. The next prime is 2102112212183. The reversal of 2102112212178 is 8712122112012.

It is not an unprimeable number, because it can be changed into a prime (2102112212177) 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, 88823575 + ... + 88847237.

It is an arithmetic number, because the mean of its divisors is an integer number (71819340768).

Almost surely, 2^{2102112212178} is an apocalyptic number.

2102112212178 is an abundant number, since it is smaller than the sum of its proper divisors (2494325596974).

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

2102112212178 is a wasteful number, since it uses less digits than its factorization.

2102112212178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26559.

The product of its (nonzero) digits is 1792, while the sum is 30.

The spelling of 2102112212178 in words is "two trillion, one hundred two billion, one hundred twelve million, two hundred twelve thousand, one hundred seventy-eight".