111200010001 has 2 divisors, whose sum is σ = 111200010002. Its totient is φ = 111200010000.

The previous prime is 111200009971. The next prime is 111200010073. The reversal of 111200010001 is 100010002111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65167878400 + 46032131601 = 255280^2 + 214551^2 .

It is a cyclic number.

It is not a de Polignac number, because 111200010001 - 2⁹ = 111200009489 is a prime.

111200010001 is a modest number, since divided by 10001 gives 1112 as remainder.

It is not a weakly prime, because it can be changed into another prime (111200010091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55600005000 + 55600005001.

It is an arithmetic number, because the mean of its divisors is an integer number (55600005001).

Almost surely, 2^111200010001 is an apocalyptic number.

It is an amenable number.

111200010001 is a deficient number, since it is larger than the sum of its proper divisors (1).

111200010001 is an equidigital number, since it uses as much as digits as its factorization.

111200010001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 111200010001 its reverse (100010002111), we get a palindrome (211210012112).

The spelling of 111200010001 in words is "one hundred eleven billion, two hundred million, ten thousand, one".