10210221020 has 12 divisors (see below), whose sum is σ = 21441464184. Its totient is φ = 4084088400.

The previous prime is 10210221017. The next prime is 10210221031. The reversal of 10210221020 is 2012201201.

It is a happy number.

10210221020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10210221020² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10210220992 and 10210221010.

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, 255255506 + ... + 255255545.

It is an arithmetic number, because the mean of its divisors is an integer number (1786788682).

Almost surely, 2^10210221020 is an apocalyptic number.

10210221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10210221020 is an abundant number, since it is smaller than the sum of its proper divisors (11231243164).

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

10210221020 is a wasteful number, since it uses less digits than its factorization.

10210221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510511060 (or 510511058 counting only the distinct ones).

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

Adding to 10210221020 its reverse (2012201201), we get a palindrome (12222422221).

The spelling of 10210221020 in words is "ten billion, two hundred ten million, two hundred twenty-one thousand, twenty".