220012221121112 has 128 divisors (see below), whose sum is σ = 481666279680000. Its totient is φ = 92264081588736.

The previous prime is 220012221121057. The next prime is 220012221121123. The reversal of 220012221121112 is 211121122210022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 980207714 + ... + 980432142.

It is an arithmetic number, because the mean of its divisors is an integer number (3763017810000).

Almost surely, 2^{220012221121112} 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 220012221121112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240833139840000).

220012221121112 is an abundant number, since it is smaller than the sum of its proper divisors (261654058558888).

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

220012221121112 is a wasteful number, since it uses less digits than its factorization.

220012221121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225873 (or 225869 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 220012221121112 its reverse (211121122210022), we get a palindrome (431133343331134).

The spelling of 220012221121112 in words is "two hundred twenty trillion, twelve billion, two hundred twenty-one million, one hundred twenty-one thousand, one hundred twelve".