2001222322 has 16 divisors (see below), whose sum is σ = 3350885472. Its totient is φ = 888491520.

The previous prime is 2001222317. The next prime is 2001222361. The reversal of 2001222322 is 2232221002.

It is a junction number, because it is equal to n+sod(n) for n = 2001222296 and 2001222305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1056783 + ... + 1058674.

It is an arithmetic number, because the mean of its divisors is an integer number (209430342).

Almost surely, 2^2001222322 is an apocalyptic number.

2001222322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2001222322 is a deficient number, since it is larger than the sum of its proper divisors (1349663150).

2001222322 is a wasteful number, since it uses less digits than its factorization.

2001222322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115513.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2001222322 is about 44735.0234380178. The cubic root of 2001222322 is about 1260.1776691597.

Adding to 2001222322 its reverse (2232221002), we get a palindrome (4233443324).

The spelling of 2001222322 in words is "two billion, one million, two hundred twenty-two thousand, three hundred twenty-two".