111212021201 has 8 divisors (see below), whose sum is σ = 111406656000. Its totient is φ = 111017467440.

The previous prime is 111212021197. The next prime is 111212021281. The reversal of 111212021201 is 102120212111.

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 111212021201 - 2² = 111212021197 is a prime.

It is a super-3 number, since 3×111212021201³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111212021281) 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, 3154610 + ... + 3189668.

It is an arithmetic number, because the mean of its divisors is an integer number (13925832000).

Almost surely, 2^111212021201 is an apocalyptic number.

It is an amenable number.

111212021201 is a deficient number, since it is larger than the sum of its proper divisors (194634799).

111212021201 is an equidigital number, since it uses as much as digits as its factorization.

111212021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40519.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111212021201 its reverse (102120212111), we get a palindrome (213332233312).

The spelling of 111212021201 in words is "one hundred eleven billion, two hundred twelve million, twenty-one thousand, two hundred one".