22130212220 has 24 divisors (see below), whose sum is σ = 48494031264. Its totient is φ = 8467211456.

The previous prime is 22130212217. The next prime is 22130212231. The reversal of 22130212220 is 2221203122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24054119 + ... + 24055038.

It is an arithmetic number, because the mean of its divisors is an integer number (2020584636).

Almost surely, 2^22130212220 is an apocalyptic number.

22130212220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22130212220 is an abundant number, since it is smaller than the sum of its proper divisors (26363819044).

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

22130212220 is a wasteful number, since it uses less digits than its factorization.

22130212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48109189 (or 48109187 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 22130212220 its reverse (2221203122), we get a palindrome (24351415342).

The spelling of 22130212220 in words is "twenty-two billion, one hundred thirty million, two hundred twelve thousand, two hundred twenty".