2221020110 has 16 divisors (see below), whose sum is σ = 4126799232. Its totient is φ = 859749600.

The previous prime is 2221020077. The next prime is 2221020119. The reversal of 2221020110 is 110201222.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2221020091 and 2221020100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221020119) 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 7 ways as a sum of consecutive naturals, for example, 3581981 + ... + 3582600.

It is an arithmetic number, because the mean of its divisors is an integer number (257924952).

Almost surely, 2^2221020110 is an apocalyptic number.

2221020110 is a deficient number, since it is larger than the sum of its proper divisors (1905779122).

2221020110 is a wasteful number, since it uses less digits than its factorization.

2221020110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7164619.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2221020110 is about 47127.7000287517. The cubic root of 2221020110 is about 1304.7205324353.

Adding to 2221020110 its reverse (110201222), we get a palindrome (2331221332).

The spelling of 2221020110 in words is "two billion, two hundred twenty-one million, twenty thousand, one hundred ten".