22222213112 has 64 divisors (see below), whose sum is σ = 46268375040. Its totient is φ = 9921744000.

The previous prime is 22222213103. The next prime is 22222213133. The reversal of 22222213112 is 21131222222.

It is a super-3 number, since 3×22222213112³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1118933 + ... + 1138619.

It is an arithmetic number, because the mean of its divisors is an integer number (722943360).

Almost surely, 2^22222213112 is an apocalyptic number.

22222213112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22222213112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23134187520).

22222213112 is an abundant number, since it is smaller than the sum of its proper divisors (24046161928).

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

22222213112 is a wasteful number, since it uses less digits than its factorization.

22222213112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19932 (or 19928 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

Adding to 22222213112 its reverse (21131222222), we get a palindrome (43353435334).

The spelling of 22222213112 in words is "twenty-two billion, two hundred twenty-two million, two hundred thirteen thousand, one hundred twelve".