111222231201 has 6 divisors (see below), whose sum is σ = 160654333970. Its totient is φ = 74148154128.

The previous prime is 111222231193. The next prime is 111222231233. The reversal of 111222231201 is 102132222111.

111222231201 is a `hidden beast` number, since 1 + 11 + 222 + 231 + 201 = 666.

It can be written as a sum of positive squares in only one way, i.e., 75350250000 + 35871981201 = 274500^2 + 189399^2 .

It is not a de Polignac number, because 111222231201 - 2³ = 111222231193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111222232201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6179012836 + ... + 6179012853.

Almost surely, 2^111222231201 is an apocalyptic number.

It is an amenable number.

111222231201 is a deficient number, since it is larger than the sum of its proper divisors (49432102769).

111222231201 is a wasteful number, since it uses less digits than its factorization.

111222231201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12358025695 (or 12358025692 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 111222231201 its reverse (102132222111), we get a palindrome (213354453312).

The spelling of 111222231201 in words is "one hundred eleven billion, two hundred twenty-two million, two hundred thirty-one thousand, two hundred one".