2102220111 has 8 divisors (see below), whose sum is σ = 2806054144. Its totient is φ = 1399933080.

The previous prime is 2102220061. The next prime is 2102220149. The reversal of 2102220111 is 1110222012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2102220111 - 2⁶ = 2102220047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102220151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383575 + ... + 389016.

It is an arithmetic number, because the mean of its divisors is an integer number (350756768).

Almost surely, 2^2102220111 is an apocalyptic number.

2102220111 is a deficient number, since it is larger than the sum of its proper divisors (703834033).

2102220111 is an equidigital number, since it uses as much as digits as its factorization.

2102220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773501.

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

The square root of 2102220111 is about 45849.9739476480. The cubic root of 2102220111 is about 1281.0302803208.

Adding to 2102220111 its reverse (1110222012), we get a palindrome (3212442123).

It can be divided in two parts, 210222011 and 1, that added together give a palindrome (210222012).

The spelling of 2102220111 in words is "two billion, one hundred two million, two hundred twenty thousand, one hundred eleven".