111010322221 has 2 divisors, whose sum is σ = 111010322222. Its totient is φ = 111010322220.

The previous prime is 111010322209. The next prime is 111010322239. The reversal of 111010322221 is 122223010111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59202189225 + 51808132996 = 243315^2 + 227614^2 .

It is a cyclic number.

It is not a de Polignac number, because 111010322221 - 2¹¹ = 111010320173 is a prime.

It is a super-2 number, since 2×111010322221² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111010322195 and 111010322204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111010322261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505161110 + 55505161111.

It is an arithmetic number, because the mean of its divisors is an integer number (55505161111).

Almost surely, 2^111010322221 is an apocalyptic number.

It is an amenable number.

111010322221 is a deficient number, since it is larger than the sum of its proper divisors (1).

111010322221 is an equidigital number, since it uses as much as digits as its factorization.

111010322221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 111010322221 its reverse (122223010111), we get a palindrome (233233332332).

The spelling of 111010322221 in words is "one hundred eleven billion, ten million, three hundred twenty-two thousand, two hundred twenty-one".