2011220211020 has 12 divisors (see below), whose sum is σ = 4223562443184. Its totient is φ = 804488084400.

The previous prime is 2011220211017. The next prime is 2011220211071. The reversal of 2011220211020 is 201120221102.

It is a junction number, because it is equal to n+sod(n) for n = 2011220210986 and 2011220211004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50280505256 + ... + 50280505295.

It is an arithmetic number, because the mean of its divisors is an integer number (351963536932).

Almost surely, 2^{2011220211020} is an apocalyptic number.

2011220211020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011220211020 is an abundant number, since it is smaller than the sum of its proper divisors (2212342232164).

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

2011220211020 is a wasteful number, since it uses less digits than its factorization.

2011220211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100561010560 (or 100561010558 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2011220211020 its reverse (201120221102), we get a palindrome (2212340432122).

The spelling of 2011220211020 in words is "two trillion, eleven billion, two hundred twenty million, two hundred eleven thousand, twenty".