221010112011112 has 16 divisors (see below), whose sum is σ = 417033411997860. Its totient is φ = 109801202145024.

The previous prime is 221010112011107. The next prime is 221010112011121. The reversal of 221010112011112 is 211110211010122.

It can be written as a sum of positive squares in 2 ways, for example, as 196120250438436 + 24889861572676 = 14004294^2 + 4988974^2 .

It is a super-2 number, since 2×221010112011112² (a number of 29 digits) contains 22 as substring.

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, 87981731233 + ... + 87981733744.

Almost surely, 2^{221010112011112} is an apocalyptic number.

It is an amenable number.

221010112011112 is a deficient number, since it is larger than the sum of its proper divisors (196023299986748).

221010112011112 is a wasteful number, since it uses less digits than its factorization.

221010112011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175963465140 (or 175963465136 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 221010112011112 its reverse (211110211010122), we get a palindrome (432120323021234).

The spelling of 221010112011112 in words is "two hundred twenty-one trillion, ten billion, one hundred twelve million, eleven thousand, one hundred twelve".