210111110222231 has 2 divisors, whose sum is σ = 210111110222232. Its totient is φ = 210111110222230.

The previous prime is 210111110222207. The next prime is 210111110222257. The reversal of 210111110222231 is 132222011111012.

210111110222231 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210111110222231 is a prime.

It is a super-2 number, since 2×210111110222231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210111110222261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105055555111115 + 105055555111116.

It is an arithmetic number, because the mean of its divisors is an integer number (105055555111116).

Almost surely, 2^{210111110222231} is an apocalyptic number.

210111110222231 is a deficient number, since it is larger than the sum of its proper divisors (1).

210111110222231 is an equidigital number, since it uses as much as digits as its factorization.

210111110222231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 210111110222231 its reverse (132222011111012), we get a palindrome (342333121333243).

The spelling of 210111110222231 in words is "two hundred ten trillion, one hundred eleven billion, one hundred ten million, two hundred twenty-two thousand, two hundred thirty-one".