111200002101 has 12 divisors (see below), whose sum is σ = 160895865312. Its totient is φ = 74007039336.

The previous prime is 111200002087. The next prime is 111200002103. The reversal of 111200002101 is 101200002111.

It is a happy number.

It is not a de Polignac number, because 111200002101 - 2¹⁴ = 111199985717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111200002103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10519041 + ... + 10529606.

It is an arithmetic number, because the mean of its divisors is an integer number (13407988776).

Almost surely, 2^111200002101 is an apocalyptic number.

It is an amenable number.

111200002101 is a deficient number, since it is larger than the sum of its proper divisors (49695863211).

111200002101 is a wasteful number, since it uses less digits than its factorization.

111200002101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21049240 (or 21049237 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 111200002101 its reverse (101200002111), we get a palindrome (212400004212).

The spelling of 111200002101 in words is "one hundred eleven billion, two hundred million, two thousand, one hundred one".