22022210221220 has 96 divisors (see below), whose sum is σ = 53475356946816. Its totient is φ = 7529002342400.

The previous prime is 22022210221213. The next prime is 22022210221327. The reversal of 22022210221220 is 2212201222022.

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 = 22022210221192 and 22022210221201.

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 31 ways as a sum of consecutive naturals, for example, 390599 + ... + 6648081.

It is an arithmetic number, because the mean of its divisors is an integer number (557034968196).

Almost surely, 2^{22022210221220} is an apocalyptic number.

22022210221220 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 22022210221220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26737678473408).

22022210221220 is an abundant number, since it is smaller than the sum of its proper divisors (31453146725596).

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

22022210221220 is a wasteful number, since it uses less digits than its factorization.

22022210221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6258461 (or 6258459 counting only the distinct ones).

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

Adding to 22022210221220 its reverse (2212201222022), we get a palindrome (24234411443242).

The spelling of 22022210221220 in words is "twenty-two trillion, twenty-two billion, two hundred ten million, two hundred twenty-one thousand, two hundred twenty".