111010220201 has 6 divisors (see below), whose sum is σ = 117924351870. Its totient is φ = 104480206976.

The previous prime is 111010220197. The next prime is 111010220207. The reversal of 111010220201 is 102022010111.

It can be written as a sum of positive squares in 3 ways, for example, as 60710496025 + 50299724176 = 246395^2 + 224276^2 .

It is not a de Polignac number, because 111010220201 - 2² = 111010220197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111010220207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 192058916 + ... + 192059493.

It is an arithmetic number, because the mean of its divisors is an integer number (19654058645).

Almost surely, 2^111010220201 is an apocalyptic number.

It is an amenable number.

111010220201 is a deficient number, since it is larger than the sum of its proper divisors (6914131669).

111010220201 is an equidigital number, since it uses as much as digits as its factorization.

111010220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384118443 (or 384118426 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 111010220201 its reverse (102022010111), we get a palindrome (213032230312).

The spelling of 111010220201 in words is "one hundred eleven billion, ten million, two hundred twenty thousand, two hundred one".