111200001211111 has 8 divisors (see below), whose sum is σ = 112371025388384. Its totient is φ = 110029479736320.

The previous prime is 111200001211063. The next prime is 111200001211181. The reversal of 111200001211111 is 111112100002111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111200001211111 - 2¹³ = 111200001202919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111200001211091 and 111200001211100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111200001211181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125230875 + ... + 126115708.

It is an arithmetic number, because the mean of its divisors is an integer number (14046378173548).

Almost surely, 2^{111200001211111} is an apocalyptic number.

111200001211111 is a deficient number, since it is larger than the sum of its proper divisors (1171024177273).

111200001211111 is an equidigital number, since it uses as much as digits as its factorization.

111200001211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251351241.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 111200001211111 its reverse (111112100002111), we get a palindrome (222312101213222).

The spelling of 111200001211111 in words is "one hundred eleven trillion, two hundred billion, one million, two hundred eleven thousand, one hundred eleven".