111010002221 has 2 divisors, whose sum is σ = 111010002222. Its totient is φ = 111010002220.

The previous prime is 111010002211. The next prime is 111010002241. The reversal of 111010002221 is 122200010111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110981593321 + 28408900 = 333139^2 + 5330^2 .

It is a cyclic number.

It is not a de Polignac number, because 111010002221 - 2¹⁰ = 111010001197 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111010002211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505001110 + 55505001111.

It is an arithmetic number, because the mean of its divisors is an integer number (55505001111).

Almost surely, 2^111010002221 is an apocalyptic number.

It is an amenable number.

111010002221 is a deficient number, since it is larger than the sum of its proper divisors (1).

111010002221 is an equidigital number, since it uses as much as digits as its factorization.

111010002221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 111010002221 its reverse (122200010111), we get a palindrome (233210012332).

The spelling of 111010002221 in words is "one hundred eleven billion, ten million, two thousand, two hundred twenty-one".