111221033133 has 32 divisors (see below), whose sum is σ = 171296210176. Its totient is φ = 62874206208.

The previous prime is 111221033123. The next prime is 111221033171. The reversal of 111221033133 is 331330122111.

It is a happy number.

It is not a de Polignac number, because 111221033133 - 2²² = 111216838829 is a prime.

It is a super-2 number, since 2×111221033133² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111221033123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5761185 + ... + 5780457.

It is an arithmetic number, because the mean of its divisors is an integer number (5353006568).

Almost surely, 2^111221033133 is an apocalyptic number.

It is an amenable number.

111221033133 is a deficient number, since it is larger than the sum of its proper divisors (60075177043).

111221033133 is a wasteful number, since it uses less digits than its factorization.

111221033133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22213.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 111221033133 its reverse (331330122111), we get a palindrome (442551155244).

The spelling of 111221033133 in words is "one hundred eleven billion, two hundred twenty-one million, thirty-three thousand, one hundred thirty-three".