2212131322 has 4 divisors (see below), whose sum is σ = 3318196986. Its totient is φ = 1106065660.

The previous prime is 2212131319. The next prime is 2212131323. The reversal of 2212131322 is 2231312122.

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

It can be written as a sum of positive squares in only one way, i.e., 1916600841 + 295530481 = 43779^2 + 17191^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2212131322.

It is not an unprimeable number, because it can be changed into a prime (2212131323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 553032829 + ... + 553032832.

Almost surely, 2^2212131322 is an apocalyptic number.

2212131322 is a deficient number, since it is larger than the sum of its proper divisors (1106065664).

2212131322 is a wasteful number, since it uses less digits than its factorization.

2212131322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106065663.

The product of its digits is 288, while the sum is 19.

The square root of 2212131322 is about 47033.3001393693. The cubic root of 2212131322 is about 1302.9776561141.

Adding to 2212131322 its reverse (2231312122), we get a palindrome (4443443444).

The spelling of 2212131322 in words is "two billion, two hundred twelve million, one hundred thirty-one thousand, three hundred twenty-two".