2002111211220 has 96 divisors (see below), whose sum is σ = 5800560353280. Its totient is φ = 515440548480.

The previous prime is 2002111211173. The next prime is 2002111211297. The reversal of 2002111211220 is 221121112002.

It is a super-3 number, since 3×2002111211220³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2002111211220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 505152 + ... + 2063831.

It is an arithmetic number, because the mean of its divisors is an integer number (60422503680).

Almost surely, 2^{2002111211220} is an apocalyptic number.

2002111211220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002111211220 is an abundant number, since it is smaller than the sum of its proper divisors (3798449142060).

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

2002111211220 is a wasteful number, since it uses less digits than its factorization.

2002111211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569445 (or 2569443 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2002111211220 its reverse (221121112002), we get a palindrome (2223232323222).

The spelling of 2002111211220 in words is "two trillion, two billion, one hundred eleven million, two hundred eleven thousand, two hundred twenty".