2162167222 has 4 divisors (see below), whose sum is σ = 3243250836. Its totient is φ = 1081083610.

The previous prime is 2162167213. The next prime is 2162167223. The reversal of 2162167222 is 2227612612.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2162167223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540541804 + ... + 540541807.

It is an arithmetic number, because the mean of its divisors is an integer number (810812709).

Almost surely, 2^2162167222 is an apocalyptic number.

2162167222 is a deficient number, since it is larger than the sum of its proper divisors (1081083614).

2162167222 is a wasteful number, since it uses less digits than its factorization.

2162167222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081083613.

The product of its digits is 8064, while the sum is 31.

The square root of 2162167222 is about 46499.1099054595. The cubic root of 2162167222 is about 1293.0929971251.

Adding to 2162167222 its reverse (2227612612), we get a palindrome (4389779834).

The spelling of 2162167222 in words is "two billion, one hundred sixty-two million, one hundred sixty-seven thousand, two hundred twenty-two".