111200212021201 has 4 divisors (see below), whose sum is σ = 111200789526372. Its totient is φ = 111199634516032.

The previous prime is 111200212021181. The next prime is 111200212021231. The reversal of 111200212021201 is 102120212002111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 77272802345025 + 33927409676176 = 8790495^2 + 5824724^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111200212021201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111200212021231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288463660 + ... + 288848893.

It is an arithmetic number, because the mean of its divisors is an integer number (27800197381593).

Almost surely, 2^{111200212021201} is an apocalyptic number.

It is an amenable number.

111200212021201 is a deficient number, since it is larger than the sum of its proper divisors (577505171).

111200212021201 is an equidigital number, since it uses as much as digits as its factorization.

111200212021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577505170.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111200212021201 its reverse (102120212002111), we get a palindrome (213320424023312).

The spelling of 111200212021201 in words is "one hundred eleven trillion, two hundred billion, two hundred twelve million, twenty-one thousand, two hundred one".