1331122322 has 4 divisors (see below), whose sum is σ = 1996683486. Its totient is φ = 665561160.

The previous prime is 1331122291. The next prime is 1331122333. The reversal of 1331122322 is 2232211331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2232211331 = 7 ⋅318887333.

It can be written as a sum of positive squares in only one way, i.e., 1138995001 + 192127321 = 33749^2 + 13861^2 .

It is a super-2 number, since 2×1331122322² = 3543773272253343368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1331122294 and 1331122303.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332780579 + ... + 332780582.

Almost surely, 2^1331122322 is an apocalyptic number.

1331122322 is a deficient number, since it is larger than the sum of its proper divisors (665561164).

1331122322 is an equidigital number, since it uses as much as digits as its factorization.

1331122322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665561163.

The product of its digits is 432, while the sum is 20.

The square root of 1331122322 is about 36484.5490858802. The cubic root of 1331122322 is about 1100.0336964884.

Adding to 1331122322 its reverse (2232211331), we get a palindrome (3563333653).

The spelling of 1331122322 in words is "one billion, three hundred thirty-one million, one hundred twenty-two thousand, three hundred twenty-two".