111000020221111 has 16 divisors (see below), whose sum is σ = 136159343337024. Its totient is φ = 88319574042624.

The previous prime is 111000020221109. The next prime is 111000020221121. The reversal of 111000020221111 is 111122020000111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111000020221111 - 2¹ = 111000020221109 is a prime.

It is a super-4 number, since 4×111000020221111⁴ (a number of 57 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111000020221091 and 111000020221100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111000020221121) 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, 6388849390 + ... + 6388866763.

It is an arithmetic number, because the mean of its divisors is an integer number (8509958958564).

Almost surely, 2^{111000020221111} is an apocalyptic number.

111000020221111 is a deficient number, since it is larger than the sum of its proper divisors (25159323115913).

111000020221111 is a wasteful number, since it uses less digits than its factorization.

111000020221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12777716250.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111000020221111 its reverse (111122020000111), we get a palindrome (222122040221222).

The spelling of 111000020221111 in words is "one hundred eleven trillion, twenty million, two hundred twenty-one thousand, one hundred eleven".