221123233222112 has 24 divisors (see below), whose sum is σ = 468823778130456. Its totient is φ = 102056876871552.

The previous prime is 221123233222097. The next prime is 221123233222121. The reversal of 221123233222112 is 211222332321122.

It is a super-3 number, since 3×221123233222112³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265773116438 + ... + 265773117269.

It is an arithmetic number, because the mean of its divisors is an integer number (19534324088769).

Almost surely, 2^{221123233222112} is an apocalyptic number.

It is an amenable number.

221123233222112 is an abundant number, since it is smaller than the sum of its proper divisors (247700544908344).

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

221123233222112 is a wasteful number, since it uses less digits than its factorization.

221123233222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531546233730 (or 531546233722 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

Adding to 221123233222112 its reverse (211222332321122), we get a palindrome (432345565543234).

The spelling of 221123233222112 in words is "two hundred twenty-one trillion, one hundred twenty-three billion, two hundred thirty-three million, two hundred twenty-two thousand, one hundred twelve".