2201220111 has 16 divisors (see below), whose sum is σ = 2950038144. Its totient is φ = 1459958304.

The previous prime is 2201220079. The next prime is 2201220121. The reversal of 2201220111 is 1110221022.

2201220111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2201220111 - 2⁵ = 2201220079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201220121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 685636 + ... + 688838.

It is an arithmetic number, because the mean of its divisors is an integer number (184377384).

Almost surely, 2^2201220111 is an apocalyptic number.

2201220111 is a deficient number, since it is larger than the sum of its proper divisors (748818033).

2201220111 is a wasteful number, since it uses less digits than its factorization.

2201220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4310.

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

The square root of 2201220111 is about 46917.1622223681. The cubic root of 2201220111 is about 1300.8318366491.

Adding to 2201220111 its reverse (1110221022), we get a palindrome (3311441133).

The spelling of 2201220111 in words is "two billion, two hundred one million, two hundred twenty thousand, one hundred eleven".