1322001331 has 12 divisors (see below), whose sum is σ = 1573604472. Its totient is φ = 1106790048.

The previous prime is 1322001319. The next prime is 1322001347. The reversal of 1322001331 is 1331002231.

It is not a de Polignac number, because 1322001331 - 2⁷ = 1322001203 is a prime.

It is a super-2 number, since 2×1322001331² = 3495375038331543122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1322001431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 311610 + ... + 315823.

It is an arithmetic number, because the mean of its divisors is an integer number (131133706).

Almost surely, 2^1322001331 is an apocalyptic number.

1322001331 is a deficient number, since it is larger than the sum of its proper divisors (251603141).

1322001331 is an equidigital number, since it uses as much as digits as its factorization.

1322001331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627490 (or 627483 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1322001331 is about 36359.3362288147. The cubic root of 1322001331 is about 1097.5154201060.

Adding to 1322001331 its reverse (1331002231), we get a palindrome (2653003562).

The spelling of 1322001331 in words is "one billion, three hundred twenty-two million, one thousand, three hundred thirty-one".