111200121202111 has 16 divisors (see below), whose sum is σ = 111767385784320. Its totient is φ = 110633742394560.

The previous prime is 111200121202061. The next prime is 111200121202123. The reversal of 111200121202111 is 111202121002111.

It is a cyclic number.

It is not a de Polignac number, because 111200121202111 - 2¹⁵ = 111200121169343 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 (111200121202151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1605580995 + ... + 1605650251.

It is an arithmetic number, because the mean of its divisors is an integer number (6985461611520).

Almost surely, 2^{111200121202111} is an apocalyptic number.

111200121202111 is a deficient number, since it is larger than the sum of its proper divisors (567264582209).

111200121202111 is a wasteful number, since it uses less digits than its factorization.

111200121202111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75534.

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

Adding to 111200121202111 its reverse (111202121002111), we get a palindrome (222402242204222).

The spelling of 111200121202111 in words is "one hundred eleven trillion, two hundred billion, one hundred twenty-one million, two hundred two thousand, one hundred eleven".