222011212231 has 2 divisors, whose sum is σ = 222011212232. Its totient is φ = 222011212230.

The previous prime is 222011212169. The next prime is 222011212253. The reversal of 222011212231 is 132212110222.

222011212231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222011212231 - 2¹⁵ = 222011179463 is a prime.

It is a super-2 number, since 2×222011212231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222011212199 and 222011212208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222011212271) 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, 111005606115 + 111005606116.

It is an arithmetic number, because the mean of its divisors is an integer number (111005606116).

Almost surely, 2^222011212231 is an apocalyptic number.

222011212231 is a deficient number, since it is larger than the sum of its proper divisors (1).

222011212231 is an equidigital number, since it uses as much as digits as its factorization.

222011212231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 222011212231 its reverse (132212110222), we get a palindrome (354223322453).

The spelling of 222011212231 in words is "two hundred twenty-two billion, eleven million, two hundred twelve thousand, two hundred thirty-one".