2002111200091 has 12 divisors (see below), whose sum is σ = 2177661909000. Its totient is φ = 1835551847520.

The previous prime is 2002111200059. The next prime is 2002111200109. The reversal of 2002111200091 is 1900021112002.

It is a happy number.

It is not a de Polignac number, because 2002111200091 - 2⁵ = 2002111200059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2002111200041) 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, 54807066 + ... + 54843583.

It is an arithmetic number, because the mean of its divisors is an integer number (181471825750).

Almost surely, 2^{2002111200091} is an apocalyptic number.

2002111200091 is a deficient number, since it is larger than the sum of its proper divisors (175550708909).

2002111200091 is a wasteful number, since it uses less digits than its factorization.

2002111200091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109650730 (or 109650699 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 2002111200091 its reverse (1900021112002), we get a palindrome (3902132312093).

The spelling of 2002111200091 in words is "two trillion, two billion, one hundred eleven million, two hundred thousand, ninety-one".