18200304022220 has 24 divisors (see below), whose sum is σ = 38229832905264. Its totient is φ = 7278370283456.

The previous prime is 18200304022181. The next prime is 18200304022259. The reversal of 18200304022220 is 2222040300281.

It is an interprime number because it is at equal distance from previous prime (18200304022181) and next prime (18200304022259).

It is a self number, because there is not a number n which added to its sum of digits gives 18200304022220.

It is an unprimeable number.

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, 109372622 + ... + 109538901.

It is an arithmetic number, because the mean of its divisors is an integer number (1592909704386).

Almost surely, 2^{18200304022220} is an apocalyptic number.

18200304022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18200304022220 is an abundant number, since it is smaller than the sum of its proper divisors (20029528883044).

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

18200304022220 is a wasteful number, since it uses less digits than its factorization.

18200304022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218915689 (or 218915687 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The spelling of 18200304022220 in words is "eighteen trillion, two hundred billion, three hundred four million, twenty-two thousand, two hundred twenty".