3512213225 has 6 divisors (see below), whose sum is σ = 4355144430. Its totient is φ = 2809770560.

The previous prime is 3512213207. The next prime is 3512213273. The reversal of 3512213225 is 5223122153.

It is a happy number.

3512213225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1413721 + 3510799504 = 1189^2 + 59252^2 .

It is not a de Polignac number, because 3512213225 - 2⁸ = 3512212969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3512213194 and 3512213203.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70244240 + ... + 70244289.

It is an arithmetic number, because the mean of its divisors is an integer number (725857405).

Almost surely, 2^3512213225 is an apocalyptic number.

It is an amenable number.

3512213225 is a deficient number, since it is larger than the sum of its proper divisors (842931205).

3512213225 is a wasteful number, since it uses less digits than its factorization.

3512213225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140488539 (or 140488534 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 3512213225 is about 59263.9285316119. The cubic root of 3512213225 is about 1520.0584616538.

Adding to 3512213225 its reverse (5223122153), we get a palindrome (8735335378).

The spelling of 3512213225 in words is "three billion, five hundred twelve million, two hundred thirteen thousand, two hundred twenty-five".