111220020201 has 4 divisors (see below), whose sum is σ = 148293360272. Its totient is φ = 74146680132.

The previous prime is 111220020199. The next prime is 111220020217. The reversal of 111220020201 is 102020022111.

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 not a de Polignac number, because 111220020201 - 2¹ = 111220020199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111220020001) 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, 18536670031 + ... + 18536670036.

It is an arithmetic number, because the mean of its divisors is an integer number (37073340068).

Almost surely, 2^111220020201 is an apocalyptic number.

It is an amenable number.

111220020201 is a deficient number, since it is larger than the sum of its proper divisors (37073340071).

111220020201 is an equidigital number, since it uses as much as digits as its factorization.

111220020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37073340070.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 111220020201 its reverse (102020022111), we get a palindrome (213240042312).

The spelling of 111220020201 in words is "one hundred eleven billion, two hundred twenty million, twenty thousand, two hundred one".