2123210124 has 48 divisors (see below), whose sum is σ = 6290995200. Its totient is φ = 606631248.

The previous prime is 2123210123. The next prime is 2123210129. The reversal of 2123210124 is 4210123212.

It is a happy number.

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 = 2123210097 and 2123210106.

It is not an unprimeable number, because it can be changed into a prime (2123210123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1403484 + ... + 1404995.

It is an arithmetic number, because the mean of its divisors is an integer number (131062400).

Almost surely, 2^2123210124 is an apocalyptic number.

It is an amenable number.

2123210124 is an abundant number, since it is smaller than the sum of its proper divisors (4167785076).

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

2123210124 is a wasteful number, since it uses less digits than its factorization.

2123210124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2808499 (or 2808491 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2123210124 is about 46078.3042656737. The cubic root of 2123210124 is about 1285.2797311746.

Adding to 2123210124 its reverse (4210123212), we get a palindrome (6333333336).

The spelling of 2123210124 in words is "two billion, one hundred twenty-three million, two hundred ten thousand, one hundred twenty-four".