1331002202 has 4 divisors (see below), whose sum is σ = 1996503306. Its totient is φ = 665501100.

The previous prime is 1331002201. The next prime is 1331002213. The reversal of 1331002202 is 2022001331.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 781146601 + 549855601 = 27949^2 + 23449^2 .

It is not an unprimeable number, because it can be changed into a prime (1331002201) 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, 332750549 + ... + 332750552.

Almost surely, 2^1331002202 is an apocalyptic number.

1331002202 is a deficient number, since it is larger than the sum of its proper divisors (665501104).

1331002202 is an equidigital number, since it uses as much as digits as its factorization.

1331002202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665501103.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1331002202 is about 36482.9028724415. The cubic root of 1331002202 is about 1100.0006066112. Note that the first 3 decimals are identical.

Adding to 1331002202 its reverse (2022001331), we get a palindrome (3353003533).

The spelling of 1331002202 in words is "one billion, three hundred thirty-one million, two thousand, two hundred two".