22232313212220 has 480 divisors, whose sum is σ = 72906681798720. Its totient is φ = 5665725480960.

The previous prime is 22232313212147. The next prime is 22232313212251. The reversal of 22232313212220 is 2221231323222.

22232313212220 is a `hidden beast` number, since 2 + 223 + 2 + 3 + 1 + 3 + 212 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 2811721507 + ... + 2811729413.

It is an arithmetic number, because the mean of its divisors is an integer number (151888920414).

Almost surely, 2^{22232313212220} is an apocalyptic number.

22232313212220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22232313212220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36453340899360).

22232313212220 is an abundant number, since it is smaller than the sum of its proper divisors (50674368586500).

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

22232313212220 is a wasteful number, since it uses less digits than its factorization.

22232313212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8795 (or 8784 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 22232313212220 its reverse (2221231323222), we get a palindrome (24453544535442).

The spelling of 22232313212220 in words is "twenty-two trillion, two hundred thirty-two billion, three hundred thirteen million, two hundred twelve thousand, two hundred twenty".