11110222201 has 4 divisors (see below), whose sum is σ = 11964854692. Its totient is φ = 10255589712.

The previous prime is 11110222169. The next prime is 11110222231. The reversal of 11110222201 is 10222201111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7047434601 + 4062787600 = 83949^2 + 63740^2 .

It is a cyclic number.

It is not a de Polignac number, because 11110222201 - 2⁵ = 11110222169 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 854632477 = 11110222201 / (1 + 1 + 1 + 1 + 0 + 2 + 2 + 2 + 2 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11110222231) 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, 427316226 + ... + 427316251.

It is an arithmetic number, because the mean of its divisors is an integer number (2991213673).

Almost surely, 2^11110222201 is an apocalyptic number.

It is an amenable number.

11110222201 is a deficient number, since it is larger than the sum of its proper divisors (854632491).

11110222201 is an equidigital number, since it uses as much as digits as its factorization.

11110222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854632490.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11110222201 its reverse (10222201111), we get a palindrome (21332423312).

It can be divided in two parts, 111 and 10222201, that multiplied together give a palindrome (1134664311).

The spelling of 11110222201 in words is "eleven billion, one hundred ten million, two hundred twenty-two thousand, two hundred one".