2123230212 has 48 divisors (see below), whose sum is σ = 5507214720. Its totient is φ = 707416416.

The previous prime is 2123230129. The next prime is 2123230231. The reversal of 2123230212 is 2120323212.

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

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, 381393 + ... + 386919.

It is an arithmetic number, because the mean of its divisors is an integer number (114733640).

Almost surely, 2^2123230212 is an apocalyptic number.

It is an amenable number.

2123230212 is an abundant number, since it is smaller than the sum of its proper divisors (3383984508).

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

2123230212 is a wasteful number, since it uses less digits than its factorization.

2123230212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9097 (or 9089 counting only the distinct ones).

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

The square root of 2123230212 is about 46078.5222419296. The cubic root of 2123230212 is about 1285.2837845680.

Adding to 2123230212 its reverse (2120323212), we get a palindrome (4243553424).

The spelling of 2123230212 in words is "two billion, one hundred twenty-three million, two hundred thirty thousand, two hundred twelve".