222112210081 has 2 divisors, whose sum is σ = 222112210082. Its totient is φ = 222112210080.

The previous prime is 222112210079. The next prime is 222112210127. The reversal of 222112210081 is 180012211222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216745182481 + 5367027600 = 465559^2 + 73260^2 .

It is a cyclic number.

It is not a de Polignac number, because 222112210081 - 2¹ = 222112210079 is a prime.

It is a super-3 number, since 3×222112210081³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 222112210079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (222112211081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111056105040 + 111056105041.

It is an arithmetic number, because the mean of its divisors is an integer number (111056105041).

Almost surely, 2^222112210081 is an apocalyptic number.

It is an amenable number.

222112210081 is a deficient number, since it is larger than the sum of its proper divisors (1).

222112210081 is an equidigital number, since it uses as much as digits as its factorization.

222112210081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 22.

The spelling of 222112210081 in words is "two hundred twenty-two billion, one hundred twelve million, two hundred ten thousand, eighty-one".