2251115222 has 8 divisors (see below), whose sum is σ = 3385583400. Its totient is φ = 1122587424.

The previous prime is 2251115213. The next prime is 2251115233. The reversal of 2251115222 is 2225111522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1484147 + ... + 1485662.

It is an arithmetic number, because the mean of its divisors is an integer number (423197925).

Almost surely, 2^2251115222 is an apocalyptic number.

2251115222 is a deficient number, since it is larger than the sum of its proper divisors (1134468178).

2251115222 is a wasteful number, since it uses less digits than its factorization.

2251115222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2970190.

The product of its digits is 800, while the sum is 23.

The square root of 2251115222 is about 47445.9189182800. The cubic root of 2251115222 is about 1310.5871582680.

Adding to 2251115222 its reverse (2225111522), we get a palindrome (4476226744).

The spelling of 2251115222 in words is "two billion, two hundred fifty-one million, one hundred fifteen thousand, two hundred twenty-two".