4212521212 has 12 divisors (see below), whose sum is σ = 7424948440. Its totient is φ = 2091107376.

The previous prime is 4212521207. The next prime is 4212521219. The reversal of 4212521212 is 2121252124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4212521219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3787683 + ... + 3788794.

Almost surely, 2^4212521212 is an apocalyptic number.

It is an amenable number.

4212521212 is a deficient number, since it is larger than the sum of its proper divisors (3212427228).

4212521212 is a wasteful number, since it uses less digits than its factorization.

4212521212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7576620 (or 7576618 counting only the distinct ones).

The product of its digits is 640, while the sum is 22.

The square root of 4212521212 is about 64903.9383396724. The cubic root of 4212521212 is about 1615.0303951952.

Adding to 4212521212 its reverse (2121252124), we get a palindrome (6333773336).

The spelling of 4212521212 in words is "four billion, two hundred twelve million, five hundred twenty-one thousand, two hundred twelve".