2201818222 has 4 divisors (see below), whose sum is σ = 3302727336. Its totient is φ = 1100909110.

The previous prime is 2201818169. The next prime is 2201818247. The reversal of 2201818222 is 2228181022.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550454554 + ... + 550454557.

It is an arithmetic number, because the mean of its divisors is an integer number (825681834).

Almost surely, 2^2201818222 is an apocalyptic number.

2201818222 is a deficient number, since it is larger than the sum of its proper divisors (1100909114).

2201818222 is a wasteful number, since it uses less digits than its factorization.

2201818222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100909113.

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 2201818222 is about 46923.5359068346. The cubic root of 2201818222 is about 1300.9496457629.

Adding to 2201818222 its reverse (2228181022), we get a palindrome (4429999244).

The spelling of 2201818222 in words is "two billion, two hundred one million, eight hundred eighteen thousand, two hundred twenty-two".