2123122110 has 64 divisors (see below), whose sum is σ = 5269929984. Its totient is φ = 546854400.

The previous prime is 2123122097. The next prime is 2123122181. The reversal of 2123122110 is 112213212.

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 2123122110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 562630 + ... + 566390.

It is an arithmetic number, because the mean of its divisors is an integer number (82342656).

Almost surely, 2^2123122110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2123122110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2634964992).

2123122110 is an abundant number, since it is smaller than the sum of its proper divisors (3146807874).

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

2123122110 is a wasteful number, since it uses less digits than its factorization.

2123122110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4409.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2123122110 is about 46077.3492076096. The cubic root of 2123122110 is about 1285.2619712471.

Adding to 2123122110 its reverse (112213212), we get a palindrome (2235335322).

The spelling of 2123122110 in words is "two billion, one hundred twenty-three million, one hundred twenty-two thousand, one hundred ten".