2001220012113 has 24 divisors (see below), whose sum is σ = 3124488962880. Its totient is φ = 1135981072800.

The previous prime is 2001220012111. The next prime is 2001220012123. The reversal of 2001220012113 is 3112100221002.

It is not a de Polignac number, because 2001220012113 - 2¹ = 2001220012111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2001220012092 and 2001220012101.

It is not an unprimeable number, because it can be changed into a prime (2001220012111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45056418 + ... + 45100811.

It is an arithmetic number, because the mean of its divisors is an integer number (130187040120).

Almost surely, 2^{2001220012113} is an apocalyptic number.

It is an amenable number.

2001220012113 is a deficient number, since it is larger than the sum of its proper divisors (1123268950767).

2001220012113 is a wasteful number, since it uses less digits than its factorization.

2001220012113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90157397 (or 90157390 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 2001220012113 its reverse (3112100221002), we get a palindrome (5113320233115).

The spelling of 2001220012113 in words is "two trillion, one billion, two hundred twenty million, twelve thousand, one hundred thirteen".