111100021120211 has 16 divisors (see below), whose sum is σ = 112971999607200. Its totient is φ = 109243427308800.

The previous prime is 111100021120199. The next prime is 111100021120213. The reversal of 111100021120211 is 112021120001111.

It is a cyclic number.

It is not a de Polignac number, because 111100021120211 - 2¹⁸ = 111100020858067 is a prime.

It is a super-2 number, since 2×111100021120211² (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 (111100021120213) 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, 89481815 + ... + 90714911.

It is an arithmetic number, because the mean of its divisors is an integer number (7060749975450).

Almost surely, 2^{111100021120211} is an apocalyptic number.

111100021120211 is a deficient number, since it is larger than the sum of its proper divisors (1871978486989).

111100021120211 is a wasteful number, since it uses less digits than its factorization.

111100021120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239334.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111100021120211 its reverse (112021120001111), we get a palindrome (223121141121322).

The spelling of 111100021120211 in words is "one hundred eleven trillion, one hundred billion, twenty-one million, one hundred twenty thousand, two hundred eleven".