111220013133 has 12 divisors (see below), whose sum is σ = 160751746428. Its totient is φ = 74100237120.

The previous prime is 111220013117. The next prime is 111220013153. The reversal of 111220013133 is 331310022111.

It can be written as a sum of positive squares in 2 ways, for example, as 41165569449 + 70054443684 = 202893^2 + 264678^2 .

It is not a de Polignac number, because 111220013133 - 2⁴ = 111220013117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111220013153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3854688 + ... + 3883433.

It is an arithmetic number, because the mean of its divisors is an integer number (13395978869).

Almost surely, 2^111220013133 is an apocalyptic number.

It is an amenable number.

111220013133 is a deficient number, since it is larger than the sum of its proper divisors (49531733295).

111220013133 is a wasteful number, since it uses less digits than its factorization.

111220013133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7739724 (or 7739721 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 111220013133 its reverse (331310022111), we get a palindrome (442530035244).

The spelling of 111220013133 in words is "one hundred eleven billion, two hundred twenty million, thirteen thousand, one hundred thirty-three".