2189227822 has 4 divisors (see below), whose sum is σ = 3283841736. Its totient is φ = 1094613910.

The previous prime is 2189227801. The next prime is 2189227829. The reversal of 2189227822 is 2287229812.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189227829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 547306954 + ... + 547306957.

It is an arithmetic number, because the mean of its divisors is an integer number (820960434).

Almost surely, 2^2189227822 is an apocalyptic number.

2189227822 is a deficient number, since it is larger than the sum of its proper divisors (1094613914).

2189227822 is a wasteful number, since it uses less digits than its factorization.

2189227822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094613913.

The product of its digits is 129024, while the sum is 43.

The square root of 2189227822 is about 46789.1848828338. The cubic root of 2189227822 is about 1298.4652147750.

The spelling of 2189227822 in words is "two billion, one hundred eighty-nine million, two hundred twenty-seven thousand, eight hundred twenty-two".