111211200101 has 24 divisors (see below), whose sum is σ = 117554396544. Its totient is φ = 105180828480.

The previous prime is 111211200073. The next prime is 111211200103. The reversal of 111211200101 is 101002112111.

It is not a de Polignac number, because 111211200101 - 2¹⁴ = 111211183717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111211200103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9368696 + ... + 9380558.

It is an arithmetic number, because the mean of its divisors is an integer number (4898099856).

Almost surely, 2^111211200101 is an apocalyptic number.

It is an amenable number.

111211200101 is a deficient number, since it is larger than the sum of its proper divisors (6343196443).

111211200101 is a wasteful number, since it uses less digits than its factorization.

111211200101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12149 (or 12120 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 111211200101 its reverse (101002112111), we get a palindrome (212213312212).

The spelling of 111211200101 in words is "one hundred eleven billion, two hundred eleven million, two hundred thousand, one hundred one".