10221111112 has 16 divisors (see below), whose sum is σ = 19165745340. Its totient is φ = 5110245696.

The previous prime is 10221111101. The next prime is 10221111163. The reversal of 10221111112 is 21111112201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9546462436 + 674648676 = 97706^2 + 25974^2 .

It is a super-2 number, since 2×10221111112² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10221111092 and 10221111101.

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, 163678 + ... + 217330.

Almost surely, 2^10221111112 is an apocalyptic number.

It is an amenable number.

10221111112 is a deficient number, since it is larger than the sum of its proper divisors (8944634228).

10221111112 is a wasteful number, since it uses less digits than its factorization.

10221111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77472 (or 77468 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 10221111112 its reverse (21111112201), we get a palindrome (31332223313).

It can be divided in two parts, 10 and 221111112, that added together give a palindrome (221111122).

The spelling of 10221111112 in words is "ten billion, two hundred twenty-one million, one hundred eleven thousand, one hundred twelve".