10020221212 has 24 divisors (see below), whose sum is σ = 18067000896. Its totient is φ = 4860108288.

The previous prime is 10020221207. The next prime is 10020221219. The reversal of 10020221212 is 21212202001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10020221192 and 10020221201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020221219) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 214593 + ... + 257080.

It is an arithmetic number, because the mean of its divisors is an integer number (752791704).

Almost surely, 2^10020221212 is an apocalyptic number.

It is an amenable number.

10020221212 is a deficient number, since it is larger than the sum of its proper divisors (8046779684).

10020221212 is a wasteful number, since it uses less digits than its factorization.

10020221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471837 (or 471835 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 10020221212 its reverse (21212202001), we get a palindrome (31232423213).

The spelling of 10020221212 in words is "ten billion, twenty million, two hundred twenty-one thousand, two hundred twelve".