111220120211 has 8 divisors (see below), whose sum is σ = 115061083200. Its totient is φ = 107379543040.

The previous prime is 111220120201. The next prime is 111220120237. The reversal of 111220120211 is 112021022111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111220120211 - 2⁶ = 111220120147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111220120201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 567635 + ... + 738003.

It is an arithmetic number, because the mean of its divisors is an integer number (14382635400).

Almost surely, 2^111220120211 is an apocalyptic number.

111220120211 is a deficient number, since it is larger than the sum of its proper divisors (3840962989).

111220120211 is a wasteful number, since it uses less digits than its factorization.

111220120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192909.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111220120211 its reverse (112021022111), we get a palindrome (223241142322).

The spelling of 111220120211 in words is "one hundred eleven billion, two hundred twenty million, one hundred twenty thousand, two hundred eleven".