1331323222 has 16 divisors (see below), whose sum is σ = 2047446720. Its totient is φ = 648951808.

The previous prime is 1331323207. The next prime is 1331323229. The reversal of 1331323222 is 2223231331.

It is a super-2 number, since 2×1331323222² = 3544843042872922568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1331323193 and 1331323202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331323229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3397 + ... + 51712.

It is an arithmetic number, because the mean of its divisors is an integer number (127965420).

Almost surely, 2^1331323222 is an apocalyptic number.

1331323222 is a deficient number, since it is larger than the sum of its proper divisors (716123498).

1331323222 is a wasteful number, since it uses less digits than its factorization.

1331323222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55415.

The product of its digits is 1296, while the sum is 22.

The square root of 1331323222 is about 36487.3022022731. The cubic root of 1331323222 is about 1100.0890346666.

Adding to 1331323222 its reverse (2223231331), we get a palindrome (3554554553).

The spelling of 1331323222 in words is "one billion, three hundred thirty-one million, three hundred twenty-three thousand, two hundred twenty-two".