111112000212221 has 2 divisors, whose sum is σ = 111112000212222. Its totient is φ = 111112000212220.

The previous prime is 111112000212209. The next prime is 111112000212233. The reversal of 111112000212221 is 122212000211111.

It is a balanced prime because it is at equal distance from previous prime (111112000212209) and next prime (111112000212233).

It can be written as a sum of positive squares in only one way, i.e., 82873457352196 + 28238542860025 = 9103486^2 + 5313995^2 .

It is a cyclic number.

It is not a de Polignac number, because 111112000212221 - 2¹⁰ = 111112000211197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111112000212221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111112000212821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55556000106110 + 55556000106111.

It is an arithmetic number, because the mean of its divisors is an integer number (55556000106111).

Almost surely, 2^{111112000212221} is an apocalyptic number.

It is an amenable number.

111112000212221 is a deficient number, since it is larger than the sum of its proper divisors (1).

111112000212221 is an equidigital number, since it uses as much as digits as its factorization.

111112000212221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111112000212221 its reverse (122212000211111), we get a palindrome (233324000423332).

The spelling of 111112000212221 in words is "one hundred eleven trillion, one hundred twelve billion, two hundred twelve thousand, two hundred twenty-one".