2188224821146 has 128 divisors (see below), whose sum is σ = 4145931288576. Its totient is φ = 843122062080.

The previous prime is 2188224821137. The next prime is 2188224821161. The reversal of 2188224821146 is 6411284228812.

It is a self number, because there is not a number n which added to its sum of digits gives 2188224821146.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2535601911 + ... + 2535602773.

It is an arithmetic number, because the mean of its divisors is an integer number (32390088192).

Almost surely, 2^{2188224821146} is an apocalyptic number.

2188224821146 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2188224821146 is a deficient number, since it is larger than the sum of its proper divisors (1957706467430).

2188224821146 is a wasteful number, since it uses less digits than its factorization.

2188224821146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036.

The product of its digits is 786432, while the sum is 49.

The spelling of 2188224821146 in words is "two trillion, one hundred eighty-eight billion, two hundred twenty-four million, eight hundred twenty-one thousand, one hundred forty-six".