111110100200221 has 2 divisors, whose sum is σ = 111110100200222. Its totient is φ = 111110100200220.

The previous prime is 111110100200191. The next prime is 111110100200249. The reversal of 111110100200221 is 122002001011111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110386248068196 + 723852132025 = 10506486^2 + 850795^2 .

It is a cyclic number.

It is not a de Polignac number, because 111110100200221 - 2¹⁹ = 111110099675933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111110100200321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55555050100110 + 55555050100111.

It is an arithmetic number, because the mean of its divisors is an integer number (55555050100111).

Almost surely, 2^{111110100200221} is an apocalyptic number.

It is an amenable number.

111110100200221 is a deficient number, since it is larger than the sum of its proper divisors (1).

111110100200221 is an equidigital number, since it uses as much as digits as its factorization.

111110100200221 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 13.

Adding to 111110100200221 its reverse (122002001011111), we get a palindrome (233112101211332).

The spelling of 111110100200221 in words is "one hundred eleven trillion, one hundred ten billion, one hundred million, two hundred thousand, two hundred twenty-one".