2121433325 has 12 divisors (see below), whose sum is σ = 2869721088. Its totient is φ = 1542860400.

The previous prime is 2121433291. The next prime is 2121433333. The reversal of 2121433325 is 5233341212.

It is a happy number.

It is not a de Polignac number, because 2121433325 - 2¹⁸ = 2121171181 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2121433294 and 2121433303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3856877 + ... + 3857426.

It is an arithmetic number, because the mean of its divisors is an integer number (239143424).

Almost surely, 2^2121433325 is an apocalyptic number.

2121433325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2121433325 is a deficient number, since it is larger than the sum of its proper divisors (748287763).

2121433325 is a wasteful number, since it uses less digits than its factorization.

2121433325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7714324 (or 7714319 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 2121433325 is about 46059.0200177989. The cubic root of 2121433325 is about 1284.9211042317.

Adding to 2121433325 its reverse (5233341212), we get a palindrome (7354774537).

The spelling of 2121433325 in words is "two billion, one hundred twenty-one million, four hundred thirty-three thousand, three hundred twenty-five".