22221002112 has 64 divisors (see below), whose sum is σ = 59633137200. Its totient is φ = 7330627584.

The previous prime is 22221002059. The next prime is 22221002143. The reversal of 22221002112 is 21120012222.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 22221002091 and 22221002100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261037 + ... + 335532.

Almost surely, 2^22221002112 is an apocalyptic number.

It is an amenable number.

22221002112 is an abundant number, since it is smaller than the sum of its proper divisors (37412135088).

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

22221002112 is an equidigital number, since it uses as much as digits as its factorization.

22221002112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596683 (or 596671 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22221002112 its reverse (21120012222), we get a palindrome (43341014334).

The spelling of 22221002112 in words is "twenty-two billion, two hundred twenty-one million, two thousand, one hundred twelve".