22220022111112 has 96 divisors (see below), whose sum is σ = 48971178414720. Its totient is φ = 9258521126400.

The previous prime is 22220022111101. The next prime is 22220022111121. The reversal of 22220022111112 is 21111122002222.

It is a super-3 number, since 3×22220022111112³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22220022111112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18084528 + ... + 19274080.

It is an arithmetic number, because the mean of its divisors is an integer number (510116441820).

Almost surely, 2^{22220022111112} 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 22220022111112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24485589207360).

22220022111112 is an abundant number, since it is smaller than the sum of its proper divisors (26751156303608).

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

22220022111112 is a wasteful number, since it uses less digits than its factorization.

22220022111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189811 (or 1189760 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22220022111112 its reverse (21111122002222), we get a palindrome (43331144113334).

The spelling of 22220022111112 in words is "twenty-two trillion, two hundred twenty billion, twenty-two million, one hundred eleven thousand, one hundred twelve".