220111112122112 has 144 divisors (see below), whose sum is σ = 477546675486720. Its totient is φ = 100870031462400.

The previous prime is 220111112122091. The next prime is 220111112122123. The reversal of 220111112122112 is 211221211111022.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 514411937 + ... + 514839647.

Almost surely, 2^{220111112122112} 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 220111112122112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238773337743360).

220111112122112 is an abundant number, since it is smaller than the sum of its proper divisors (257435563364608).

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

220111112122112 is a wasteful number, since it uses less digits than its factorization.

220111112122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431190 (or 431176 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 220111112122112 its reverse (211221211111022), we get a palindrome (431332323233134).

The spelling of 220111112122112 in words is "two hundred twenty trillion, one hundred eleven billion, one hundred twelve million, one hundred twenty-two thousand, one hundred twelve".