2188318922000 has 80 divisors (see below), whose sum is σ = 5291679953664. Its totient is φ = 875273840000.

The previous prime is 2188318921993. The next prime is 2188318922047. The reversal of 2188318922000 is 2298138812.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55562315 + ... + 55601685.

Almost surely, 2^{2188318922000} is an apocalyptic number.

2188318922000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2188318922000 is an abundant number, since it is smaller than the sum of its proper divisors (3103361031664).

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

2188318922000 is a wasteful number, since it uses less digits than its factorization.

2188318922000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67185 (or 67169 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 44.

The spelling of 2188318922000 in words is "two trillion, one hundred eighty-eight billion, three hundred eighteen million, nine hundred twenty-two thousand".