2312221322 has 32 divisors (see below), whose sum is σ = 3621590784. Its totient is φ = 1106265600.

The previous prime is 2312221313. The next prime is 2312221333. The reversal of 2312221322 is 2231222132.

It is a happy number.

It is a super-2 number, since 2×2312221322² = 10692734883822855368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2312221294 and 2312221303.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1488098 + ... + 1489650.

It is an arithmetic number, because the mean of its divisors is an integer number (113174712).

Almost surely, 2^2312221322 is an apocalyptic number.

2312221322 is a deficient number, since it is larger than the sum of its proper divisors (1309369462).

2312221322 is a wasteful number, since it uses less digits than its factorization.

2312221322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934.

The product of its digits is 576, while the sum is 20.

The square root of 2312221322 is about 48085.5625110074. The cubic root of 2312221322 is about 1322.3399957701.

Adding to 2312221322 its reverse (2231222132), we get a palindrome (4543443454).

It can be divided in two parts, 231222132 and 2, that multiplied together give a palindrome (462444264).

The spelling of 2312221322 in words is "two billion, three hundred twelve million, two hundred twenty-one thousand, three hundred twenty-two".