1331002201 has 2 divisors, whose sum is σ = 1331002202. Its totient is φ = 1331002200.

The previous prime is 1331002129. The next prime is 1331002213. The reversal of 1331002201 is 1022001331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1227451225 + 103550976 = 35035^2 + 10176^2 .

It is a cyclic number.

It is not a de Polignac number, because 1331002201 - 2²⁷ = 1196784473 is a prime.

It is not a weakly prime, because it can be changed into another prime (1331002261) 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, 665501100 + 665501101.

It is an arithmetic number, because the mean of its divisors is an integer number (665501101).

Almost surely, 2^1331002201 is an apocalyptic number.

It is an amenable number.

1331002201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331002201 is an equidigital number, since it uses as much as digits as its factorization.

1331002201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1331002201 is about 36482.9028587364. The cubic root of 1331002201 is about 1100.0006063358. Note that the first 3 decimals are identical.

Adding to 1331002201 its reverse (1022001331), we get a palindrome (2353003532).

The spelling of 1331002201 in words is "one billion, three hundred thirty-one million, two thousand, two hundred one".