2220111029 has 4 divisors (see below), whose sum is σ = 2220432684. Its totient is φ = 2219789376.

The previous prime is 2220111017. The next prime is 2220111053. The reversal of 2220111029 is 9201110222.

It is a happy number.

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 2200548100 + 19562929 = 46910^2 + 4423^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220111029 - 2⁸ = 2220110773 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2220111029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220111079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150242 + ... + 164355.

It is an arithmetic number, because the mean of its divisors is an integer number (555108171).

Almost surely, 2^2220111029 is an apocalyptic number.

It is an amenable number.

2220111029 is a deficient number, since it is larger than the sum of its proper divisors (321655).

2220111029 is an equidigital number, since it uses as much as digits as its factorization.

2220111029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321654.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 2220111029 is about 47118.0541724719. The cubic root of 2220111029 is about 1304.5424973508.

The spelling of 2220111029 in words is "two billion, two hundred twenty million, one hundred eleven thousand, twenty-nine".