2180218022 has 4 divisors (see below), whose sum is σ = 3270327036. Its totient is φ = 1090109010.

The previous prime is 2180217997. The next prime is 2180218039. The reversal of 2180218022 is 2208120812.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 2180217982 and 2180218000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545054504 + ... + 545054507.

It is an arithmetic number, because the mean of its divisors is an integer number (817581759).

Almost surely, 2^2180218022 is an apocalyptic number.

2180218022 is a deficient number, since it is larger than the sum of its proper divisors (1090109014).

2180218022 is a wasteful number, since it uses less digits than its factorization.

2180218022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090109013.

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 2180218022 is about 46692.8048204432. The cubic root of 2180218022 is about 1296.6814811703.

Adding to 2180218022 its reverse (2208120812), we get a palindrome (4388338834).

The spelling of 2180218022 in words is "two billion, one hundred eighty million, two hundred eighteen thousand, twenty-two".