2002111101220 has 24 divisors (see below), whose sum is σ = 4205546049600. Its totient is φ = 800632490592.

The previous prime is 2002111101217. The next prime is 2002111101229. The reversal of 2002111101220 is 221011112002.

It is a super-2 number, since 2×2002111101220² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2002111101220.

It is not an unprimeable number, because it can be changed into a prime (2002111101229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13169400 + ... + 13320559.

It is an arithmetic number, because the mean of its divisors is an integer number (175231085400).

Almost surely, 2^{2002111101220} is an apocalyptic number.

2002111101220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002111101220 is an abundant number, since it is smaller than the sum of its proper divisors (2203434948380).

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

2002111101220 is a wasteful number, since it uses less digits than its factorization.

2002111101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26493747 (or 26493745 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2002111101220 its reverse (221011112002), we get a palindrome (2223122213222).

The spelling of 2002111101220 in words is "two trillion, two billion, one hundred eleven million, one hundred one thousand, two hundred twenty".