111201220011 has 32 divisors (see below), whose sum is σ = 171053977600. Its totient is φ = 62942209920.

The previous prime is 111201219989. The next prime is 111201220033. The reversal of 111201220011 is 110022102111.

It is an interprime number because it is at equal distance from previous prime (111201219989) and next prime (111201220033).

It is not a de Polignac number, because 111201220011 - 2⁵ = 111201219979 is a prime.

It is a super-2 number, since 2×111201220011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111201220051) 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, 13251405 + ... + 13259793.

It is an arithmetic number, because the mean of its divisors is an integer number (5345436800).

Almost surely, 2^111201220011 is an apocalyptic number.

111201220011 is a deficient number, since it is larger than the sum of its proper divisors (59852757589).

111201220011 is a wasteful number, since it uses less digits than its factorization.

111201220011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14299.

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

Adding to 111201220011 its reverse (110022102111), we get a palindrome (221223322122).

The spelling of 111201220011 in words is "one hundred eleven billion, two hundred one million, two hundred twenty thousand, eleven".