2112022011220 has 48 divisors (see below), whose sum is σ = 4873767651648. Its totient is φ = 762402095360.

The previous prime is 2112022011167. The next prime is 2112022011227. The reversal of 2112022011220 is 221102202112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2112022011194 and 2112022011203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112022011227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35006722 + ... + 35067001.

It is an arithmetic number, because the mean of its divisors is an integer number (101536826076).

Almost surely, 2^{2112022011220} is an apocalyptic number.

2112022011220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112022011220 is an abundant number, since it is smaller than the sum of its proper divisors (2761745640428).

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

2112022011220 is a wasteful number, since it uses less digits than its factorization.

2112022011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70073880 (or 70073878 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2112022011220 its reverse (221102202112), we get a palindrome (2333124213332).

The spelling of 2112022011220 in words is "two trillion, one hundred twelve billion, twenty-two million, eleven thousand, two hundred twenty".