22110220 has 24 divisors (see below), whose sum is σ = 50653008. Its totient is φ = 8040000.

The previous prime is 22110173. The next prime is 22110229. The reversal of 22110220 is 2201122.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 22110197 and 22110206.

It is not an unprimeable number, because it can be changed into a prime (22110229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50031 + ... + 50470.

It is an arithmetic number, because the mean of its divisors is an integer number (2110542).

Almost surely, 2^22110220 is an apocalyptic number.

22110220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22110220 is an abundant number, since it is smaller than the sum of its proper divisors (28542788).

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

22110220 is a wasteful number, since it uses less digits than its factorization.

22110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100521 (or 100519 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 22110220 is about 4702.1505718129. The cubic root of 22110220 is about 280.6710943408.

Adding to 22110220 its reverse (2201122), we get a palindrome (24311342).

It can be divided in two parts, 221102 and 20, that added together give a palindrome (221122).

The spelling of 22110220 in words is "twenty-two million, one hundred ten thousand, two hundred twenty".