10200021212 has 12 divisors (see below), whose sum is σ = 17939737200. Its totient is φ = 5074382016.

The previous prime is 10200021203. The next prime is 10200021229. The reversal of 10200021212 is 21212000201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10200021193 and 10200021202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6406253 + ... + 6407844.

It is an arithmetic number, because the mean of its divisors is an integer number (1494978100).

Almost surely, 2^10200021212 is an apocalyptic number.

It is an amenable number.

10200021212 is a deficient number, since it is larger than the sum of its proper divisors (7739715988).

10200021212 is a wasteful number, since it uses less digits than its factorization.

10200021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12814300 (or 12814298 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10200021212 its reverse (21212000201), we get a palindrome (31412021413).

The spelling of 10200021212 in words is "ten billion, two hundred million, twenty-one thousand, two hundred twelve".