10020321212 has 18 divisors (see below), whose sum is σ = 19274627064. Its totient is φ = 4554691240.

The previous prime is 10020321173. The next prime is 10020321263. The reversal of 10020321212 is 21212302001.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10351088 + ... + 10352055.

Almost surely, 2^10020321212 is an apocalyptic number.

It is an amenable number.

10020321212 is a deficient number, since it is larger than the sum of its proper divisors (9254305852).

10020321212 is a wasteful number, since it uses less digits than its factorization.

10020321212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20703169 (or 20703156 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 10020321212 its reverse (21212302001), we get a palindrome (31232623213).

The spelling of 10020321212 in words is "ten billion, twenty million, three hundred twenty-one thousand, two hundred twelve".