20122210112 has 56 divisors (see below), whose sum is σ = 41330099712. Its totient is φ = 9710092800.

The previous prime is 20122210109. The next prime is 20122210183. The reversal of 20122210112 is 21101222102.

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, 726437 + ... + 753627.

Almost surely, 2^20122210112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20122210112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20665049856).

20122210112 is an abundant number, since it is smaller than the sum of its proper divisors (21207889600).

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

20122210112 is a wasteful number, since it uses less digits than its factorization.

20122210112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27607 (or 27597 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20122210112 its reverse (21101222102), we get a palindrome (41223432214).

The spelling of 20122210112 in words is "twenty billion, one hundred twenty-two million, two hundred ten thousand, one hundred twelve".