2179220120 has 192 divisors, whose sum is σ = 6328121760. Its totient is φ = 667699200.

The previous prime is 2179220093. The next prime is 2179220129. The reversal of 2179220120 is 210229712.

It is a self number, because there is not a number n which added to its sum of digits gives 2179220120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2179220129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1314332 + ... + 1315988.

Almost surely, 2^2179220120 is an apocalyptic number.

2179220120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2179220120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3164060880).

2179220120 is an abundant number, since it is smaller than the sum of its proper divisors (4148901640).

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

2179220120 is a wasteful number, since it uses less digits than its factorization.

2179220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1754 (or 1743 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 2179220120 is about 46682.1177754395. The cubic root of 2179220120 is about 1296.4836173941.

Adding to 2179220120 its reverse (210229712), we get a palindrome (2389449832).

The spelling of 2179220120 in words is "two billion, one hundred seventy-nine million, two hundred twenty thousand, one hundred twenty".