641207212 has 12 divisors (see below), whose sum is σ = 1181171320. Its totient is φ = 303729696.

The previous prime is 641207209. The next prime is 641207233. The reversal of 641207212 is 212702146.

It is a super-2 number, since 2×641207212² = 822293377441625888, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4218393 + ... + 4218544.

Almost surely, 2^641207212 is an apocalyptic number.

It is an amenable number.

641207212 is a deficient number, since it is larger than the sum of its proper divisors (539964108).

641207212 is a wasteful number, since it uses less digits than its factorization.

641207212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8436960 (or 8436958 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 641207212 is about 25322.0696626480. The cubic root of 641207212 is about 862.3153813911.

Adding to 641207212 its reverse (212702146), we get a palindrome (853909358).

The spelling of 641207212 in words is "six hundred forty-one million, two hundred seven thousand, two hundred twelve".