111201212212201 has 16 divisors (see below), whose sum is σ = 112987939115520. Its totient is φ = 109426464766080.

The previous prime is 111201212212171. The next prime is 111201212212241. The reversal of 111201212212201 is 102212212102111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111201212212201 - 2³⁹ = 110651456398313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111201212212241) 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, 564154075 + ... + 564351151.

It is an arithmetic number, because the mean of its divisors is an integer number (7061746194720).

Almost surely, 2^{111201212212201} is an apocalyptic number.

It is an amenable number.

111201212212201 is a deficient number, since it is larger than the sum of its proper divisors (1786726903319).

111201212212201 is a wasteful number, since it uses less digits than its factorization.

111201212212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227424.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 111201212212201 its reverse (102212212102111), we get a palindrome (213413424314312).

The spelling of 111201212212201 in words is "one hundred eleven trillion, two hundred one billion, two hundred twelve million, two hundred twelve thousand, two hundred one".