111221230330001 has 16 divisors (see below), whose sum is σ = 123042451102848. Its totient is φ = 99685072838400.

The previous prime is 111221230329971. The next prime is 111221230330051. The reversal of 111221230330001 is 100033032122111.

It is a happy number.

It is not a de Polignac number, because 111221230330001 - 2²⁶ = 111221163221137 is a prime.

It is a super-2 number, since 2×111221230330001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111221230330051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78930041 + ... + 80326793.

It is an arithmetic number, because the mean of its divisors is an integer number (7690153193928).

Almost surely, 2^{111221230330001} is an apocalyptic number.

111221230330001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111221230330001 is a deficient number, since it is larger than the sum of its proper divisors (11821220772847).

111221230330001 is a wasteful number, since it uses less digits than its factorization.

111221230330001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498792.

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

Adding to 111221230330001 its reverse (100033032122111), we get a palindrome (211254262452112).

The spelling of 111221230330001 in words is "one hundred eleven trillion, two hundred twenty-one billion, two hundred thirty million, three hundred thirty thousand, one".