2124255215 has 4 divisors (see below), whose sum is σ = 2549106264. Its totient is φ = 1699404168.

The previous prime is 2124255209. The next prime is 2124255323. The reversal of 2124255215 is 5125524212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2124255215 - 2¹² = 2124251119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212425517 + ... + 212425526.

It is an arithmetic number, because the mean of its divisors is an integer number (637276566).

Almost surely, 2^2124255215 is an apocalyptic number.

2124255215 is a deficient number, since it is larger than the sum of its proper divisors (424851049).

2124255215 is an equidigital number, since it uses as much as digits as its factorization.

2124255215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424851048.

The product of its digits is 8000, while the sum is 29.

The square root of 2124255215 is about 46089.6432509517. The cubic root of 2124255215 is about 1285.4905776243.

Adding to 2124255215 its reverse (5125524212), we get a palindrome (7249779427).

The spelling of 2124255215 in words is "two billion, one hundred twenty-four million, two hundred fifty-five thousand, two hundred fifteen".