10221320012 has 6 divisors (see below), whose sum is σ = 17887310028. Its totient is φ = 5110660004.

The previous prime is 10221319973. The next prime is 10221320027. The reversal of 10221320012 is 21002312201.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277664998 + ... + 1277665005.

It is an arithmetic number, because the mean of its divisors is an integer number (2981218338).

Almost surely, 2^10221320012 is an apocalyptic number.

It is an amenable number.

10221320012 is a deficient number, since it is larger than the sum of its proper divisors (7665990016).

10221320012 is a wasteful number, since it uses less digits than its factorization.

10221320012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2555330007 (or 2555330005 counting only the distinct ones).

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

Adding to 10221320012 its reverse (21002312201), we get a palindrome (31223632213).

The spelling of 10221320012 in words is "ten billion, two hundred twenty-one million, three hundred twenty thousand, twelve".