3124421225 has 12 divisors (see below), whose sum is σ = 3878138316. Its totient is φ = 2497049280.

The previous prime is 3124421221. The next prime is 3124421231. The reversal of 3124421225 is 5221244213.

It can be written as a sum of positive squares in 6 ways, for example, as 780699481 + 2343721744 = 27941^2 + 48412^2 .

It is not a de Polignac number, because 3124421225 - 2² = 3124421221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3124421194 and 3124421203.

It is not an unprimeable number, because it can be changed into a prime (3124421221) by changing a digit.

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, 36362 + ... + 87011.

It is an arithmetic number, because the mean of its divisors is an integer number (323178193).

Almost surely, 2^3124421225 is an apocalyptic number.

It is an amenable number.

3124421225 is a deficient number, since it is larger than the sum of its proper divisors (753717091).

3124421225 is a wasteful number, since it uses less digits than its factorization.

3124421225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124396 (or 124391 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 3124421225 is about 55896.5224768053. The cubic root of 3124421225 is about 1461.9186049541.

Adding to 3124421225 its reverse (5221244213), we get a palindrome (8345665438).

The spelling of 3124421225 in words is "three billion, one hundred twenty-four million, four hundred twenty-one thousand, two hundred twenty-five".