111212110201 has 8 divisors (see below), whose sum is σ = 112378435400. Its totient is φ = 110048440320.

The previous prime is 111212110199. The next prime is 111212110231. The reversal of 111212110201 is 102011212111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2335208976 + 108876901225 = 48324^2 + 329965^2 .

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 111212110201 - 2¹ = 111212110199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111212110231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 579570 + ... + 747211.

It is an arithmetic number, because the mean of its divisors is an integer number (14047304425).

Almost surely, 2^111212110201 is an apocalyptic number.

It is an amenable number.

111212110201 is a deficient number, since it is larger than the sum of its proper divisors (1166325199).

111212110201 is a wasteful number, since it uses less digits than its factorization.

111212110201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327659.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111212110201 its reverse (102011212111), we get a palindrome (213223322312).

The spelling of 111212110201 in words is "one hundred eleven billion, two hundred twelve million, one hundred ten thousand, two hundred one".