1331422006 has 4 divisors (see below), whose sum is σ = 1997133012. Its totient is φ = 665711002.

The previous prime is 1331422003. The next prime is 1331422067. The reversal of 1331422006 is 6002241331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6002241331 = 29 ⋅206973839.

It is a super-2 number, since 2×1331422006² = 3545369116122128072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331422003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332855500 + ... + 332855503.

It is an arithmetic number, because the mean of its divisors is an integer number (499283253).

Almost surely, 2^1331422006 is an apocalyptic number.

1331422006 is a deficient number, since it is larger than the sum of its proper divisors (665711006).

1331422006 is an equidigital number, since it uses as much as digits as its factorization.

1331422006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665711005.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1331422006 is about 36488.6558535663. The cubic root of 1331422006 is about 1100.1162428120.

Adding to 1331422006 its reverse (6002241331), we get a palindrome (7333663337).

The spelling of 1331422006 in words is "one billion, three hundred thirty-one million, four hundred twenty-two thousand, six".