1110110100221 has 2 divisors, whose sum is σ = 1110110100222. Its totient is φ = 1110110100220.

The previous prime is 1110110100103. The next prime is 1110110100233. The reversal of 1110110100221 is 1220010110111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1042673800996 + 67436299225 = 1021114^2 + 259685^2 .

It is a cyclic number.

It is not a de Polignac number, because 1110110100221 - 2²⁶ = 1110042991357 is a prime.

It is a super-2 number, since 2×1110110100221² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1110110106221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555055050110 + 555055050111.

It is an arithmetic number, because the mean of its divisors is an integer number (555055050111).

Almost surely, 2^{1110110100221} is an apocalyptic number.

It is an amenable number.

1110110100221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110110100221 is an equidigital number, since it uses as much as digits as its factorization.

1110110100221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1110110100221 its reverse (1220010110111), we get a palindrome (2330120210332).

The spelling of 1110110100221 in words is "one trillion, one hundred ten billion, one hundred ten million, one hundred thousand, two hundred twenty-one".