2123230122 has 48 divisors (see below), whose sum is σ = 4977799008. Its totient is φ = 650190240.

The previous prime is 2123230121. The next prime is 2123230129. The reversal of 2123230122 is 2210323212.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2123230095 and 2123230104.

It is not an unprimeable number, because it can be changed into a prime (2123230121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27873 + ... + 70875.

It is an arithmetic number, because the mean of its divisors is an integer number (103704146).

Almost surely, 2^2123230122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2123230122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2488899504).

2123230122 is an abundant number, since it is smaller than the sum of its proper divisors (2854568886).

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

2123230122 is a wasteful number, since it uses less digits than its factorization.

2123230122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43235 (or 43232 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2123230122 is about 46078.5212653358. The cubic root of 2123230122 is about 1285.2837664077.

Adding to 2123230122 its reverse (2210323212), we get a palindrome (4333553334).

The spelling of 2123230122 in words is "two billion, one hundred twenty-three million, two hundred thirty thousand, one hundred twenty-two".