111230221441 has 4 divisors (see below), whose sum is σ = 112479999300. Its totient is φ = 109980443584.

The previous prime is 111230221411. The next prime is 111230221493. The reversal of 111230221441 is 144122032111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19907799025 + 91322422416 = 141095^2 + 302196^2 .

It is a cyclic number.

It is not a de Polignac number, because 111230221441 - 2⁹ = 111230220929 is a prime.

It is a super-2 number, since 2×111230221441² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111230221411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 624888796 + ... + 624888973.

It is an arithmetic number, because the mean of its divisors is an integer number (28119999825).

Almost surely, 2^111230221441 is an apocalyptic number.

It is an amenable number.

111230221441 is a deficient number, since it is larger than the sum of its proper divisors (1249777859).

111230221441 is an equidigital number, since it uses as much as digits as its factorization.

111230221441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249777858.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 111230221441 its reverse (144122032111), we get a palindrome (255352253552).

The spelling of 111230221441 in words is "one hundred eleven billion, two hundred thirty million, two hundred twenty-one thousand, four hundred forty-one".