2001222011096 has 128 divisors (see below), whose sum is σ = 4753628812800. Its totient is φ = 767173524480.

The previous prime is 2001222011081. The next prime is 2001222011177. The reversal of 2001222011096 is 6901102221002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18788486 + ... + 18894698.

It is an arithmetic number, because the mean of its divisors is an integer number (37137725100).

Almost surely, 2^{2001222011096} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2001222011096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2376814406400).

2001222011096 is an abundant number, since it is smaller than the sum of its proper divisors (2752406801704).

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

2001222011096 is a wasteful number, since it uses less digits than its factorization.

2001222011096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106729 (or 106725 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

Adding to 2001222011096 its reverse (6901102221002), we get a palindrome (8902324232098).

The spelling of 2001222011096 in words is "two trillion, one billion, two hundred twenty-two million, eleven thousand, ninety-six".