10221021212 has 6 divisors (see below), whose sum is σ = 17886787128. Its totient is φ = 5110510604.

The previous prime is 10221021169. The next prime is 10221021227. The reversal of 10221021212 is 21212012201.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 1277627648 + ... + 1277627655.

It is an arithmetic number, because the mean of its divisors is an integer number (2981131188).

Almost surely, 2^10221021212 is an apocalyptic number.

It is an amenable number.

10221021212 is a deficient number, since it is larger than the sum of its proper divisors (7665765916).

10221021212 is a wasteful number, since it uses less digits than its factorization.

10221021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555255307 (or 2555255305 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10221021212 its reverse (21212012201), we get a palindrome (31433033413).

The spelling of 10221021212 in words is "ten billion, two hundred twenty-one million, twenty-one thousand, two hundred twelve".