2112220002220 has 24 divisors (see below), whose sum is σ = 4436482587264. Its totient is φ = 844731699456.

The previous prime is 2112220002209. The next prime is 2112220002251. The reversal of 2112220002220 is 222000222112.

It is a super-2 number, since 2×2112220002220² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2112220002194 and 2112220002203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9657997 + ... + 9874276.

It is an arithmetic number, because the mean of its divisors is an integer number (184853441136).

Almost surely, 2^{2112220002220} is an apocalyptic number.

2112220002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112220002220 is an abundant number, since it is smaller than the sum of its proper divisors (2324262585044).

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

2112220002220 is a wasteful number, since it uses less digits than its factorization.

2112220002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19537689 (or 19537687 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2112220002220 its reverse (222000222112), we get a palindrome (2334220224332).

The spelling of 2112220002220 in words is "two trillion, one hundred twelve billion, two hundred twenty million, two thousand, two hundred twenty".