1331255122 has 8 divisors (see below), whose sum is σ = 1997404236. Its totient is φ = 665453712.

The previous prime is 1331255099. The next prime is 1331255137. The reversal of 1331255122 is 2215521331.

It can be written as a sum of positive squares in 2 ways, for example, as 1274418601 + 56836521 = 35699^2 + 7539^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77133 + ... + 92800.

Almost surely, 2^1331255122 is an apocalyptic number.

1331255122 is a deficient number, since it is larger than the sum of its proper divisors (666149114).

1331255122 is a wasteful number, since it uses less digits than its factorization.

1331255122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173852.

The product of its digits is 1800, while the sum is 25.

The square root of 1331255122 is about 36486.3689889800. The cubic root of 1331255122 is about 1100.0702770527.

Adding to 1331255122 its reverse (2215521331), we get a palindrome (3546776453).

The spelling of 1331255122 in words is "one billion, three hundred thirty-one million, two hundred fifty-five thousand, one hundred twenty-two".