10012221020 has 12 divisors (see below), whose sum is σ = 21025664184. Its totient is φ = 4004888400.

The previous prime is 10012221017. The next prime is 10012221041. The reversal of 10012221020 is 2012221001.

It is a happy number.

10012221020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 10012220992 and 10012221010.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 250305506 + ... + 250305545.

It is an arithmetic number, because the mean of its divisors is an integer number (1752138682).

Almost surely, 2^10012221020 is an apocalyptic number.

10012221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10012221020 is an abundant number, since it is smaller than the sum of its proper divisors (11013443164).

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

10012221020 is a wasteful number, since it uses less digits than its factorization.

10012221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500611060 (or 500611058 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10012221020 its reverse (2012221001), we get a palindrome (12024442021).

The spelling of 10012221020 in words is "ten billion, twelve million, two hundred twenty-one thousand, twenty".