222222021222112 has 192 divisors, whose sum is σ = 452963175356160. Its totient is φ = 107268506025984.

The previous prime is 222222021222079. The next prime is 222222021222119. The reversal of 222222021222112 is 211222120222222.

It is a super-2 number, since 2×222222021222112² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222222021222119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57675061978 + ... + 57675065830.

It is an arithmetic number, because the mean of its divisors is an integer number (2359183204980).

Almost surely, 2^{222222021222112} 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 222222021222112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226481587678080).

222222021222112 is an abundant number, since it is smaller than the sum of its proper divisors (230741154134048).

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

222222021222112 is a wasteful number, since it uses less digits than its factorization.

222222021222112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6105 (or 6097 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 222222021222112 its reverse (211222120222222), we get a palindrome (433444141444334).

The spelling of 222222021222112 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, twenty-one million, two hundred twenty-two thousand, one hundred twelve".