2212212120 has 32 divisors (see below), whose sum is σ = 6636636720. Its totient is φ = 589923200.

The previous prime is 2212212109. The next prime is 2212212131. The reversal of 2212212120 is 212122122.

It is an interprime number because it is at equal distance from previous prime (2212212109) and next prime (2212212131).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2212212120.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9217431 + ... + 9217670.

Almost surely, 2^2212212120 is an apocalyptic number.

2212212120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212212120 is an abundant number, since it is smaller than the sum of its proper divisors (4424424600).

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

2212212120 is a wasteful number, since it uses less digits than its factorization.

2212212120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18435115 (or 18435111 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2212212120 is about 47034.1590761438. The cubic root of 2212212120 is about 1302.9935196550.

Adding to 2212212120 its reverse (212122122), we get a palindrome (2424334242).

The spelling of 2212212120 in words is "two billion, two hundred twelve million, two hundred twelve thousand, one hundred twenty".