111011201201 has 4 divisors (see below), whose sum is σ = 111012557172. Its totient is φ = 111009845232.

The previous prime is 111011201153. The next prime is 111011201263. The reversal of 111011201201 is 102102110111.

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 3332060176 + 107679141025 = 57724^2 + 328145^2 .

It is a cyclic number.

It is not a de Polignac number, because 111011201201 - 2¹⁰ = 111011200177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111011201281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 546710 + ... + 721743.

It is an arithmetic number, because the mean of its divisors is an integer number (27753139293).

Almost surely, 2^111011201201 is an apocalyptic number.

It is an amenable number.

111011201201 is a deficient number, since it is larger than the sum of its proper divisors (1355971).

111011201201 is an equidigital number, since it uses as much as digits as its factorization.

111011201201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355970.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 111011201201 its reverse (102102110111), we get a palindrome (213113311312).

The spelling of 111011201201 in words is "one hundred eleven billion, eleven million, two hundred one thousand, two hundred one".