10221231112 has 8 divisors (see below), whose sum is σ = 19164808350. Its totient is φ = 5110615552.

The previous prime is 10221231103. The next prime is 10221231133. The reversal of 10221231112 is 21113212201.

It can be written as a sum of positive squares in only one way, i.e., 6797342916 + 3423888196 = 82446^2 + 58514^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638826937 + ... + 638826952.

Almost surely, 2^10221231112 is an apocalyptic number.

It is an amenable number.

10221231112 is a deficient number, since it is larger than the sum of its proper divisors (8943577238).

10221231112 is a wasteful number, since it uses less digits than its factorization.

10221231112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277653895 (or 1277653891 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 10221231112 its reverse (21113212201), we get a palindrome (31334443313).

The spelling of 10221231112 in words is "ten billion, two hundred twenty-one million, two hundred thirty-one thousand, one hundred twelve".