2212222120 has 32 divisors (see below), whose sum is σ = 5071419720. Its totient is φ = 868192000.

The previous prime is 2212222097. The next prime is 2212222123. The reversal of 2212222120 is 212222122.

2212222120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1601440324 + 610781796 = 40018^2 + 24714^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2212222094 and 2212222103.

It is not an unprimeable number, because it can be changed into a prime (2212222123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 519631 + ... + 523870.

Almost surely, 2^2212222120 is an apocalyptic number.

2212222120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212222120 is an abundant number, since it is smaller than the sum of its proper divisors (2859197600).

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

2212222120 is a wasteful number, since it uses less digits than its factorization.

2212222120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043565 (or 1043561 counting only the distinct ones).

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

The square root of 2212222120 is about 47034.2653817406. The cubic root of 2212222120 is about 1302.9954829863.

Adding to 2212222120 its reverse (212222122), we get a palindrome (2424444242).

The spelling of 2212222120 in words is "two billion, two hundred twelve million, two hundred twenty-two thousand, one hundred twenty".