111212012120201 has 8 divisors (see below), whose sum is σ = 111413317346784. Its totient is φ = 111010885438240.

The previous prime is 111212012120191. The next prime is 111212012120221. The reversal of 111212012120201 is 102021210212111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111212012120201 is a prime.

It is a super-2 number, since 2×111212012120201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111212012120201.

It is not an unprimeable number, because it can be changed into a prime (111212012120221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43389236 + ... + 45880821.

It is an arithmetic number, because the mean of its divisors is an integer number (13926664668348).

Almost surely, 2^{111212012120201} is an apocalyptic number.

It is an amenable number.

111212012120201 is a deficient number, since it is larger than the sum of its proper divisors (201305226583).

111212012120201 is an equidigital number, since it uses as much as digits as its factorization.

111212012120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89272311.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111212012120201 its reverse (102021210212111), we get a palindrome (213233222332312).

The spelling of 111212012120201 in words is "one hundred eleven trillion, two hundred twelve billion, twelve million, one hundred twenty thousand, two hundred one".