222131111281 has 2 divisors, whose sum is σ = 222131111282. Its totient is φ = 222131111280.

The previous prime is 222131111273. The next prime is 222131111317. The reversal of 222131111281 is 182111131222.

222131111281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153206485056 + 68924626225 = 391416^2 + 262535^2 .

It is a cyclic number.

It is not a de Polignac number, because 222131111281 - 2³ = 222131111273 is a prime.

It is a super-3 number, since 3×222131111281³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (222131111381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111065555640 + 111065555641.

It is an arithmetic number, because the mean of its divisors is an integer number (111065555641).

Almost surely, 2^222131111281 is an apocalyptic number.

It is an amenable number.

222131111281 is a deficient number, since it is larger than the sum of its proper divisors (1).

222131111281 is an equidigital number, since it uses as much as digits as its factorization.

222131111281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384, while the sum is 25.

The spelling of 222131111281 in words is "two hundred twenty-two billion, one hundred thirty-one million, one hundred eleven thousand, two hundred eighty-one".