2212165522 has 8 divisors (see below), whose sum is σ = 3792283776. Its totient is φ = 948070932.

The previous prime is 2212165513. The next prime is 2212165523. The reversal of 2212165522 is 2255612122.

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

It is not an unprimeable number, because it can be changed into a prime (2212165523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79005898 + ... + 79005925.

It is an arithmetic number, because the mean of its divisors is an integer number (474035472).

Almost surely, 2^2212165522 is an apocalyptic number.

2212165522 is a deficient number, since it is larger than the sum of its proper divisors (1580118254).

2212165522 is a wasteful number, since it uses less digits than its factorization.

2212165522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158011832.

The product of its digits is 4800, while the sum is 28.

The square root of 2212165522 is about 47033.6637101555. The cubic root of 2212165522 is about 1302.9843708460.

Adding to 2212165522 its reverse (2255612122), we get a palindrome (4467777644).

The spelling of 2212165522 in words is "two billion, two hundred twelve million, one hundred sixty-five thousand, five hundred twenty-two".