111022122220213 has 2 divisors, whose sum is σ = 111022122220214. Its totient is φ = 111022122220212.

The previous prime is 111022122220211. The next prime is 111022122220231. The reversal of 111022122220213 is 312022221220111.

Together with next prime (111022122220231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96877129093924 + 14144993126289 = 9842618^2 + 3760983^2 .

It is a cyclic number.

It is not a de Polignac number, because 111022122220213 - 2¹ = 111022122220211 is a prime.

Together with 111022122220211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111022122220211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55511061110106 + 55511061110107.

It is an arithmetic number, because the mean of its divisors is an integer number (55511061110107).

Almost surely, 2^{111022122220213} is an apocalyptic number.

It is an amenable number.

111022122220213 is a deficient number, since it is larger than the sum of its proper divisors (1).

111022122220213 is an equidigital number, since it uses as much as digits as its factorization.

111022122220213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 111022122220213 its reverse (312022221220111), we get a palindrome (423044343440324).

The spelling of 111022122220213 in words is "one hundred eleven trillion, twenty-two billion, one hundred twenty-two million, two hundred twenty thousand, two hundred thirteen".