2001001222013 has 12 divisors (see below), whose sum is σ = 2117824070304. Its totient is φ = 1887043296600.

The previous prime is 2001001222009. The next prime is 2001001222049. The reversal of 2001001222013 is 3102221001002.

It is a happy number.

It is not a de Polignac number, because 2001001222013 - 2² = 2001001222009 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 (2001001252013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8513303 + ... + 8745188.

It is an arithmetic number, because the mean of its divisors is an integer number (176485339192).

Almost surely, 2^{2001001222013} is an apocalyptic number.

2001001222013 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2001001222013 is a deficient number, since it is larger than the sum of its proper divisors (116822848291).

2001001222013 is an equidigital number, since it uses as much as digits as its factorization.

2001001222013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17258656 (or 17258585 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 2001001222013 its reverse (3102221001002), we get a palindrome (5103222223015).

The spelling of 2001001222013 in words is "two trillion, one billion, one million, two hundred twenty-two thousand, thirteen".