112222021021 has 16 divisors (see below), whose sum is σ = 128895451200. Its totient is φ = 96629500800.

The previous prime is 112222021003. The next prime is 112222021031. The reversal of 112222021021 is 120120222211.

It is a happy number.

It is not a de Polignac number, because 112222021021 - 2¹¹ = 112222018973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112222020986 and 112222021004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112222021031) 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 15 ways as a sum of consecutive naturals, for example, 944841 + ... + 1056961.

It is an arithmetic number, because the mean of its divisors is an integer number (8055965700).

Almost surely, 2^112222021021 is an apocalyptic number.

112222021021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

112222021021 is a deficient number, since it is larger than the sum of its proper divisors (16673430179).

112222021021 is a wasteful number, since it uses less digits than its factorization.

112222021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116940.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 112222021021 its reverse (120120222211), we get a palindrome (232342243232).

The spelling of 112222021021 in words is "one hundred twelve billion, two hundred twenty-two million, twenty-one thousand, twenty-one".