10212202021 has 16 divisors (see below), whose sum is σ = 11906310528. Its totient is φ = 8577316800.

The previous prime is 10212202003. The next prime is 10212202051. The reversal of 10212202021 is 12020221201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 10212202021 - 2³³ = 1622267429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10212201992 and 10212202010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212202051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283911 + ... + 317851.

It is an arithmetic number, because the mean of its divisors is an integer number (744144408).

Almost surely, 2^10212202021 is an apocalyptic number.

It is an amenable number.

10212202021 is a deficient number, since it is larger than the sum of its proper divisors (1694108507).

10212202021 is an equidigital number, since it uses as much as digits as its factorization.

10212202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34812.

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

Adding to 10212202021 its reverse (12020221201), we get a palindrome (22232423222).

The spelling of 10212202021 in words is "ten billion, two hundred twelve million, two hundred two thousand, twenty-one".