111001102443221 has 16 divisors (see below), whose sum is σ = 113941615232448. Its totient is φ = 108092216668800.

The previous prime is 111001102443173. The next prime is 111001102443223. The reversal of 111001102443221 is 122344201100111.

It is a cyclic number.

It is not a de Polignac number, because 111001102443221 - 2³⁴ = 110983922574037 is a prime.

It is a super-2 number, since 2×111001102443221² (a number of 29 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 (111001102443223) 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, 38778626 + ... + 41542556.

It is an arithmetic number, because the mean of its divisors is an integer number (7121350952028).

Almost surely, 2^{111001102443221} is an apocalyptic number.

It is an amenable number.

111001102443221 is a deficient number, since it is larger than the sum of its proper divisors (2940512789227).

111001102443221 is a wasteful number, since it uses less digits than its factorization.

111001102443221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2769652.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 111001102443221 its reverse (122344201100111), we get a palindrome (233345303543332).

The spelling of 111001102443221 in words is "one hundred eleven trillion, one billion, one hundred two million, four hundred forty-three thousand, two hundred twenty-one".