20221220112 has 40 divisors (see below), whose sum is σ = 55310986656. Its totient is φ = 6343911936.

The previous prime is 20221220093. The next prime is 20221220143. The reversal of 20221220112 is 21102212202.

It is a junction number, because it is equal to n+sod(n) for n = 20221220091 and 20221220100.

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, 12389638 + ... + 12391269.

Almost surely, 2^20221220112 is an apocalyptic number.

It is an amenable number.

20221220112 is an abundant number, since it is smaller than the sum of its proper divisors (35089766544).

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

20221220112 is a wasteful number, since it uses less digits than its factorization.

20221220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24780935 (or 24780929 counting only the distinct ones).

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

Adding to 20221220112 its reverse (21102212202), we get a palindrome (41323432314).

The spelling of 20221220112 in words is "twenty billion, two hundred twenty-one million, two hundred twenty thousand, one hundred twelve".