2123220120 has 64 divisors (see below), whose sum is σ = 7279614720. Its totient is φ = 485307264.

The previous prime is 2123220089. The next prime is 2123220133. The reversal of 2123220120 is 210223212.

It is a happy number.

2123220120 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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 2123220120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1262982 + ... + 1264661.

It is an arithmetic number, because the mean of its divisors is an integer number (113743980).

Almost surely, 2^2123220120 is an apocalyptic number.

2123220120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123220120 is an abundant number, since it is smaller than the sum of its proper divisors (5156394600).

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

2123220120 is a wasteful number, since it uses less digits than its factorization.

2123220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2527664 (or 2527660 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2123220120 is about 46078.4127330793. The cubic root of 2123220120 is about 1285.2817481889.

Adding to 2123220120 its reverse (210223212), we get a palindrome (2333443332).

The spelling of 2123220120 in words is "two billion, one hundred twenty-three million, two hundred twenty thousand, one hundred twenty".