22002212221220 has 96 divisors (see below), whose sum is σ = 57810795952896. Its totient is φ = 6833427148800.

The previous prime is 22002212221201. The next prime is 22002212221289. The reversal of 22002212221220 is 2212221220022.

It is a super-3 number, since 3×22002212221220³ (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 22002212221192 and 22002212221201.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24989237 + ... + 25854716.

It is an arithmetic number, because the mean of its divisors is an integer number (602195791176).

Almost surely, 2^{22002212221220} is an apocalyptic number.

22002212221220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22002212221220 is an abundant number, since it is smaller than the sum of its proper divisors (35808583731676).

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

22002212221220 is a wasteful number, since it uses less digits than its factorization.

22002212221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50844261 (or 50844259 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 22002212221220 its reverse (2212221220022), we get a palindrome (24214433441242).

The spelling of 22002212221220 in words is "twenty-two trillion, two billion, two hundred twelve million, two hundred twenty-one thousand, two hundred twenty".