111212201100001 has 8 divisors (see below), whose sum is σ = 118897338927744. Its totient is φ = 103654090344000.

The previous prime is 111212201099999. The next prime is 111212201100019. The reversal of 111212201100001 is 100001102212111.

It is a happy number.

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

It is not a de Polignac number, because 111212201100001 - 2¹ = 111212201099999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111212201100041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31756766125 + ... + 31756769626.

It is an arithmetic number, because the mean of its divisors is an integer number (14862167365968).

Almost surely, 2^{111212201100001} is an apocalyptic number.

It is an amenable number.

111212201100001 is a deficient number, since it is larger than the sum of its proper divisors (7685137827743).

111212201100001 is a wasteful number, since it uses less digits than its factorization.

111212201100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63513535871.

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

Adding to 111212201100001 its reverse (100001102212111), we get a palindrome (211213303312112).

The spelling of 111212201100001 in words is "one hundred eleven trillion, two hundred twelve billion, two hundred one million, one hundred thousand, one".