22110221010220 has 384 divisors, whose sum is σ = 55539196231680. Its totient is φ = 7237703531520.

The previous prime is 22110221010193. The next prime is 22110221010233. The reversal of 22110221010220 is 2201012201122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22110221010194 and 22110221010203.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 23496514950 + ... + 23496515890.

It is an arithmetic number, because the mean of its divisors is an integer number (144633323520).

Almost surely, 2^{22110221010220} is an apocalyptic number.

22110221010220 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 22110221010220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27769598115840).

22110221010220 is an abundant number, since it is smaller than the sum of its proper divisors (33428975221460).

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

22110221010220 is a wasteful number, since it uses less digits than its factorization.

22110221010220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533 (or 1531 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22110221010220 its reverse (2201012201122), we get a palindrome (24311233211342).

The spelling of 22110221010220 in words is "twenty-two trillion, one hundred ten billion, two hundred twenty-one million, ten thousand, two hundred twenty".