111722441 has 2 divisors, whose sum is σ = 111722442. Its totient is φ = 111722440.

The previous prime is 111722411. The next prime is 111722447. The reversal of 111722441 is 144227111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108764041 + 2958400 = 10429^2 + 1720^2 .

It is a cyclic number.

It is not a de Polignac number, because 111722441 - 2¹⁰ = 111721417 is a prime.

It is not a weakly prime, because it can be changed into another prime (111722447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55861220 + 55861221.

It is an arithmetic number, because the mean of its divisors is an integer number (55861221).

Almost surely, 2^111722441 is an apocalyptic number.

It is an amenable number.

111722441 is a deficient number, since it is larger than the sum of its proper divisors (1).

111722441 is an equidigital number, since it uses as much as digits as its factorization.

111722441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 448, while the sum is 23.

The square root of 111722441 is about 10569.8836795870. The cubic root of 111722441 is about 481.6299349524.

Adding to 111722441 its reverse (144227111), we get a palindrome (255949552).

The spelling of 111722441 in words is "one hundred eleven million, seven hundred twenty-two thousand, four hundred forty-one".