111213220133 has 4 divisors (see below), whose sum is σ = 111284833548. Its totient is φ = 111141606720.

The previous prime is 111213220121. The next prime is 111213220207. The reversal of 111213220133 is 331022312111.

It is a happy number.

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 39242817604 + 71970402529 = 198098^2 + 268273^2 .

It is a cyclic number.

It is not a de Polignac number, because 111213220133 - 2⁴ = 111213220117 is a prime.

It is a super-2 number, since 2×111213220133² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111213225133) 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 3 ways as a sum of consecutive naturals, for example, 35804378 + ... + 35807483.

It is an arithmetic number, because the mean of its divisors is an integer number (27821208387).

Almost surely, 2^111213220133 is an apocalyptic number.

It is an amenable number.

111213220133 is a deficient number, since it is larger than the sum of its proper divisors (71613415).

111213220133 is an equidigital number, since it uses as much as digits as its factorization.

111213220133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71613414.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 111213220133 its reverse (331022312111), we get a palindrome (442235532244).

The spelling of 111213220133 in words is "one hundred eleven billion, two hundred thirteen million, two hundred twenty thousand, one hundred thirty-three".