2220021110 has 16 divisors (see below), whose sum is σ = 4018118832. Its totient is φ = 883101600.

The previous prime is 2220021101. The next prime is 2220021121. The reversal of 2220021110 is 111200222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2220021091 and 2220021100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 611456 + ... + 615075.

It is an arithmetic number, because the mean of its divisors is an integer number (251132427).

Almost surely, 2^2220021110 is an apocalyptic number.

2220021110 is a deficient number, since it is larger than the sum of its proper divisors (1798097722).

2220021110 is a wasteful number, since it uses less digits than its factorization.

2220021110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226719.

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

The square root of 2220021110 is about 47117.0999744254. The cubic root of 2220021110 is about 1304.5248849072.

Adding to 2220021110 its reverse (111200222), we get a palindrome (2331221332).

The spelling of 2220021110 in words is "two billion, two hundred twenty million, twenty-one thousand, one hundred ten".