22210212220 has 48 divisors (see below), whose sum is σ = 53854073280. Its totient is φ = 7536420864.

The previous prime is 22210212217. The next prime is 22210212221. The reversal of 22210212220 is 2221201222.

It is a super-4 number, since 4×22210212220⁴ (a number of 42 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22210212194 and 22210212203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22210212221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 804175 + ... + 831334.

It is an arithmetic number, because the mean of its divisors is an integer number (1121959860).

Almost surely, 2^22210212220 is an apocalyptic number.

22210212220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22210212220 is an abundant number, since it is smaller than the sum of its proper divisors (31643861060).

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

22210212220 is a wasteful number, since it uses less digits than its factorization.

22210212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1635622 (or 1635620 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22210212220 its reverse (2221201222), we get a palindrome (24431413442).

The spelling of 22210212220 in words is "twenty-two billion, two hundred ten million, two hundred twelve thousand, two hundred twenty".