1333040221 has 4 divisors (see below), whose sum is σ = 1335215452. Its totient is φ = 1330864992.

The previous prime is 1333040201. The next prime is 1333040249. The reversal of 1333040221 is 1220403331.

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

It can be written as a sum of positive squares in 2 ways, for example, as 309936025 + 1023104196 = 17605^2 + 31986^2 .

It is a cyclic number.

It is not a de Polignac number, because 1333040221 - 2²¹ = 1330943069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1333040201) by changing a digit.

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, 1086696 + ... + 1087921.

It is an arithmetic number, because the mean of its divisors is an integer number (333803863).

Almost surely, 2^1333040221 is an apocalyptic number.

It is an amenable number.

1333040221 is a deficient number, since it is larger than the sum of its proper divisors (2175231).

1333040221 is an equidigital number, since it uses as much as digits as its factorization.

1333040221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2175230.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1333040221 is about 36510.8233404836. The cubic root of 1333040221 is about 1100.5617574207.

Adding to 1333040221 its reverse (1220403331), we get a palindrome (2553443552).

The spelling of 1333040221 in words is "one billion, three hundred thirty-three million, forty thousand, two hundred twenty-one".