2001220111060 has 48 divisors (see below), whose sum is σ = 4336056748800. Its totient is φ = 775442888064.

The previous prime is 2001220111049. The next prime is 2001220111061. The reversal of 2001220111060 is 601110221002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001220111061) 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 15 ways as a sum of consecutive naturals, for example, 11865270 + ... + 12032749.

It is an arithmetic number, because the mean of its divisors is an integer number (90334515600).

Almost surely, 2^{2001220111060} is an apocalyptic number.

2001220111060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001220111060 is an abundant number, since it is smaller than the sum of its proper divisors (2334836637740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2001220111060 is a wasteful number, since it uses less digits than its factorization.

2001220111060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23898160 (or 23898158 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 2001220111060 its reverse (601110221002), we get a palindrome (2602330332062).

The spelling of 2001220111060 in words is "two trillion, one billion, two hundred twenty million, one hundred eleven thousand, sixty".