1005533201201 has 4 divisors (see below), whose sum is σ = 1005540878832. Its totient is φ = 1005525523572.

The previous prime is 1005533201129. The next prime is 1005533201221. The reversal of 1005533201201 is 1021023355001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1005533201201 - 2²² = 1005529006897 is a prime.

It is a super-2 number, since 2×1005533201201² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1005533201221) 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 in 3 ways as a sum of consecutive naturals, for example, 3638891 + ... + 3905456.

It is an arithmetic number, because the mean of its divisors is an integer number (251385219708).

Almost surely, 2^{1005533201201} is an apocalyptic number.

It is an amenable number.

1005533201201 is a deficient number, since it is larger than the sum of its proper divisors (7677631).

1005533201201 is an equidigital number, since it uses as much as digits as its factorization.

1005533201201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7677630.

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 1005533201201 its reverse (1021023355001), we get a palindrome (2026556556202).

The spelling of 1005533201201 in words is "one trillion, five billion, five hundred thirty-three million, two hundred one thousand, two hundred one".