2221110 has 96 divisors (see below), whose sum is σ = 6402240. Its totient is φ = 532224.

The previous prime is 2221097. The next prime is 2221111. The reversal of 2221110 is 111222.

It is a super-3 number, since 3×2221110³ = 32872403337460893000, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 2221092 and 2221101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60012 + ... + 60048.

It is an arithmetic number, because the mean of its divisors is an integer number (66690).

2^2221110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2221110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3201120).

2221110 is an abundant number, since it is smaller than the sum of its proper divisors (4181130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2221110 is a wasteful number, since it uses less digits than its factorization.

2221110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 2221110 is about 1490.3388876360. The cubic root of 2221110 is about 130.4738133919.

Adding to 2221110 its reverse (111222), we get a palindrome (2332332).

The spelling of 2221110 in words is "two million, two hundred twenty-one thousand, one hundred ten".