111200122011 has 32 divisors (see below), whose sum is σ = 166536292608. Its totient is φ = 65407098240.

The previous prime is 111200122001. The next prime is 111200122013. The reversal of 111200122011 is 110221002111.

It is not a de Polignac number, because 111200122011 - 2⁶ = 111200121947 is a prime.

It is a super-2 number, since 2×111200122011² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111200122013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 370036 + ... + 599438.

It is an arithmetic number, because the mean of its divisors is an integer number (5204259144).

Almost surely, 2^111200122011 is an apocalyptic number.

111200122011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111200122011 is a deficient number, since it is larger than the sum of its proper divisors (55336170597).

111200122011 is a wasteful number, since it uses less digits than its factorization.

111200122011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229851.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111200122011 its reverse (110221002111), we get a palindrome (221421124122).

The spelling of 111200122011 in words is "one hundred eleven billion, two hundred million, one hundred twenty-two thousand, eleven".