10022221220 has 96 divisors (see below), whose sum is σ = 23623488000. Its totient is φ = 3539916800.

The previous prime is 10022221217. The next prime is 10022221243. The reversal of 10022221220 is 2212222001.

It is a junction number, because it is equal to n+sod(n) for n = 10022221195 and 10022221204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2153456 + ... + 2158104.

It is an arithmetic number, because the mean of its divisors is an integer number (246078000).

Almost surely, 2^10022221220 is an apocalyptic number.

10022221220 is a gapful number since it is divisible by the number (10) 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 10022221220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11811744000).

10022221220 is an abundant number, since it is smaller than the sum of its proper divisors (13601266780).

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

10022221220 is a wasteful number, since it uses less digits than its factorization.

10022221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4949 (or 4947 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 10022221220 its reverse (2212222001), we get a palindrome (12234443221).

It can be divided in two parts, 1002 and 2221220, that added together give a palindrome (2222222).

The spelling of 10022221220 in words is "ten billion, twenty-two million, two hundred twenty-one thousand, two hundred twenty".