2001200331121 has 4 divisors (see below), whose sum is σ = 2065755180544. Its totient is φ = 1936645481700.

The previous prime is 2001200331113. The next prime is 2001200331133. The reversal of 2001200331121 is 1211330021002.

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 2001200331121 - 2³ = 2001200331113 is a prime.

It is a super-2 number, since 2×2001200331121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2001200331095 and 2001200331104.

It is not an unprimeable number, because it can be changed into a prime (2001200332121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32277424665 + ... + 32277424726.

It is an arithmetic number, because the mean of its divisors is an integer number (516438795136).

Almost surely, 2^{2001200331121} is an apocalyptic number.

It is an amenable number.

2001200331121 is a deficient number, since it is larger than the sum of its proper divisors (64554849423).

2001200331121 is an equidigital number, since it uses as much as digits as its factorization.

2001200331121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64554849422.

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

Adding to 2001200331121 its reverse (1211330021002), we get a palindrome (3212530352123).

The spelling of 2001200331121 in words is "two trillion, one billion, two hundred million, three hundred thirty-one thousand, one hundred twenty-one".