2112011101220 has 48 divisors (see below), whose sum is σ = 4463383212288. Its totient is φ = 839448305280.

The previous prime is 2112011101169. The next prime is 2112011101241. The reversal of 2112011101220 is 221011102112.

It is a junction number, because it is equal to n+sod(n) for n = 2112011101195 and 2112011101204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4188737 + ... + 4665783.

It is an arithmetic number, because the mean of its divisors is an integer number (92987150256).

Almost surely, 2^{2112011101220} is an apocalyptic number.

2112011101220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112011101220 is an abundant number, since it is smaller than the sum of its proper divisors (2351372111068).

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

2112011101220 is a wasteful number, since it uses less digits than its factorization.

2112011101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478460 (or 478458 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2112011101220 its reverse (221011102112), we get a palindrome (2333022203332).

The spelling of 2112011101220 in words is "two trillion, one hundred twelve billion, eleven million, one hundred one thousand, two hundred twenty".