3331021225 has 81 divisors (see below), whose sum is σ = 5157252783. Its totient is φ = 2127605760.

The previous prime is 3331021201. The next prime is 3331021249. The reversal of 3331021225 is 5221201333.

The square root of 3331021225 is 57715.

It is a perfect power (a square), and thus also a powerful number.

3331021225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3331021201) and next prime (3331021249).

It can be written as a sum of positive squares in 13 ways, for example, as 1326489241 + 2004531984 = 36421^2 + 44772^2 .

It is not a de Polignac number, because 3331021225 - 2²¹ = 3328924073 is a prime.

It is a super-2 number, since 2×3331021225² = 22191404802801001250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3331021196 and 3331021205.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 34340377 + ... + 34340473.

Almost surely, 2^3331021225 is an apocalyptic number.

3331021225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3331021225 is the 57715-th square number.

3331021225 is the 28858-th centered octagonal number.

It is an amenable number.

3331021225 is a deficient number, since it is larger than the sum of its proper divisors (1826231558).

3331021225 is an equidigital number, since it uses as much as digits as its factorization.

3331021225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The cubic root of 3331021225 is about 1493.4561191900.

Adding to 3331021225 its reverse (5221201333), we get a palindrome (8552222558).

The spelling of 3331021225 in words is "three billion, three hundred thirty-one million, twenty-one thousand, two hundred twenty-five".