111202213 has 2 divisors, whose sum is σ = 111202214. Its totient is φ = 111202212.

The previous prime is 111202187. The next prime is 111202243. The reversal of 111202213 is 312202111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83503044 + 27699169 = 9138^2 + 5263^2 .

It is a cyclic number.

It is not a de Polignac number, because 111202213 - 2¹⁷ = 111071141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111202193 and 111202202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111202243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55601106 + 55601107.

It is an arithmetic number, because the mean of its divisors is an integer number (55601107).

Almost surely, 2^111202213 is an apocalyptic number.

It is an amenable number.

111202213 is a deficient number, since it is larger than the sum of its proper divisors (1).

111202213 is an equidigital number, since it uses as much as digits as its factorization.

111202213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 111202213 is about 10545.2459904926. The cubic root of 111202213 is about 480.8812125355.

Adding to 111202213 its reverse (312202111), we get a palindrome (423404324).

The spelling of 111202213 in words is "one hundred eleven million, two hundred two thousand, two hundred thirteen".