2221122110 has 48 divisors (see below), whose sum is σ = 4157860896. Its totient is φ = 854112000.

The previous prime is 2221122109. The next prime is 2221122119. The reversal of 2221122110 is 112211222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221122119) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1192580 + ... + 1194440.

It is an arithmetic number, because the mean of its divisors is an integer number (86622102).

Almost surely, 2^2221122110 is an apocalyptic number.

2221122110 is a deficient number, since it is larger than the sum of its proper divisors (1936738786).

2221122110 is a wasteful number, since it uses less digits than its factorization.

2221122110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021 (or 1980 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2221122110 is about 47128.7821824413. The cubic root of 2221122110 is about 1304.7405051582.

Adding to 2221122110 its reverse (112211222), we get a palindrome (2333333332).

The spelling of 2221122110 in words is "two billion, two hundred twenty-one million, one hundred twenty-two thousand, one hundred ten".