10122221112 has 32 divisors (see below), whose sum is σ = 25783019280. Its totient is φ = 3310411520.

The previous prime is 10122221089. The next prime is 10122221119. The reversal of 10122221112 is 21112222101.

10122221112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 10122221091 and 10122221100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10122221119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3977589 + ... + 3980132.

Almost surely, 2^10122221112 is an apocalyptic number.

10122221112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10122221112 is an abundant number, since it is smaller than the sum of its proper divisors (15660798168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10122221112 is a wasteful number, since it uses less digits than its factorization.

10122221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7957783 (or 7957779 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10122221112 its reverse (21112222101), we get a palindrome (31234443213).

The spelling of 10122221112 in words is "ten billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred twelve".