111101212120201 has 8 divisors (see below), whose sum is σ = 116199440259840. Its totient is φ = 106025295701952.

The previous prime is 111101212120189. The next prime is 111101212120243. The reversal of 111101212120201 is 102021212101111.

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 111101212120201 - 2²¹ = 111101210023049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111101212127201) 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, 5577920161 + ... + 5577940078.

It is an arithmetic number, because the mean of its divisors is an integer number (14524930032480).

Almost surely, 2^{111101212120201} is an apocalyptic number.

It is an amenable number.

111101212120201 is a deficient number, since it is larger than the sum of its proper divisors (5098228139639).

111101212120201 is a wasteful number, since it uses less digits than its factorization.

111101212120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11155860695.

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

Adding to 111101212120201 its reverse (102021212101111), we get a palindrome (213122424221312).

The spelling of 111101212120201 in words is "one hundred eleven trillion, one hundred one billion, two hundred twelve million, one hundred twenty thousand, two hundred one".