110042221 has 2 divisors, whose sum is σ = 110042222. Its totient is φ = 110042220.

The previous prime is 110042209. The next prime is 110042239. The reversal of 110042221 is 122240011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73874025 + 36168196 = 8595^2 + 6014^2 .

It is an emirp because it is prime and its reverse (122240011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 110042221 - 2⁹ = 110041709 is a prime.

It is a super-2 number, since 2×110042221² = 24218580805225682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110042521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55021110 + 55021111.

It is an arithmetic number, because the mean of its divisors is an integer number (55021111).

Almost surely, 2^110042221 is an apocalyptic number.

It is an amenable number.

110042221 is a deficient number, since it is larger than the sum of its proper divisors (1).

110042221 is an equidigital number, since it uses as much as digits as its factorization.

110042221 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 13.

The square root of 110042221 is about 10490.1010957950. The cubic root of 110042221 is about 479.2032804520.

Adding to 110042221 its reverse (122240011), we get a palindrome (232282232).

It can be divided in two parts, 11004 and 2221, that added together give a square (13225 = 115²).

The spelling of 110042221 in words is "one hundred ten million, forty-two thousand, two hundred twenty-one".