2201020311996 has 144 divisors (see below), whose sum is σ = 6258509712000. Its totient is φ = 646506656640.

The previous prime is 2201020311989. The next prime is 2201020312009. The reversal of 2201020311996 is 6991130201022.

2201020311996 is a `hidden beast` number, since 220 + 10 + 20 + 311 + 9 + 96 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2201020311996.

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 47 ways as a sum of consecutive naturals, for example, 1110255 + ... + 2373753.

It is an arithmetic number, because the mean of its divisors is an integer number (43461873000).

Almost surely, 2^{2201020311996} 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 2201020311996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3129254856000).

2201020311996 is an abundant number, since it is smaller than the sum of its proper divisors (4057489400004).

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

2201020311996 is a wasteful number, since it uses less digits than its factorization.

2201020311996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263656 (or 1263651 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The spelling of 2201020311996 in words is "two trillion, two hundred one billion, twenty million, three hundred eleven thousand, nine hundred ninety-six".