111221100101201 has 4 divisors (see below), whose sum is σ = 111221148953712. Its totient is φ = 111221051248692.

The previous prime is 111221100101161. The next prime is 111221100101213. The reversal of 111221100101201 is 102101001122111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111221100101201 - 2²⁶ = 111221032992337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111221100101261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20835275 + ... + 25623248.

It is an arithmetic number, because the mean of its divisors is an integer number (27805287238428).

Almost surely, 2^{111221100101201} is an apocalyptic number.

It is an amenable number.

111221100101201 is a deficient number, since it is larger than the sum of its proper divisors (48852511).

111221100101201 is an equidigital number, since it uses as much as digits as its factorization.

111221100101201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48852510.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111221100101201 its reverse (102101001122111), we get a palindrome (213322101223312).

The spelling of 111221100101201 in words is "one hundred eleven trillion, two hundred twenty-one billion, one hundred million, one hundred one thousand, two hundred one".