1331121202 has 8 divisors (see below), whose sum is σ = 2019116700. Its totient is φ = 658082304.

The previous prime is 1331121179. The next prime is 1331121223. The reversal of 1331121202 is 2021211331.

It can be written as a sum of positive squares in 2 ways, for example, as 1305304641 + 25816561 = 36129^2 + 5081^2 .

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

It is a zygodrome in base 7.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3738927 + ... + 3739282.

Almost surely, 2^1331121202 is an apocalyptic number.

1331121202 is a deficient number, since it is larger than the sum of its proper divisors (687995498).

1331121202 is an equidigital number, since it uses as much as digits as its factorization.

1331121202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7478300.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1331121202 is about 36484.5337369138. The cubic root of 1331121202 is about 1100.0333879673.

Adding to 1331121202 its reverse (2021211331), we get a palindrome (3352332533).

The spelling of 1331121202 in words is "one billion, three hundred thirty-one million, one hundred twenty-one thousand, two hundred two".