10221403021 has 24 divisors (see below), whose sum is σ = 11105709120. Its totient is φ = 9384602304.

The previous prime is 10221403019. The next prime is 10221403037. The reversal of 10221403021 is 12030412201.

10221403021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10221403021 - 2¹ = 10221403019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10221402986 and 10221403004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221403091) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3441225 + ... + 3444193.

It is an arithmetic number, because the mean of its divisors is an integer number (462737880).

Almost surely, 2^10221403021 is an apocalyptic number.

It is an amenable number.

10221403021 is a deficient number, since it is larger than the sum of its proper divisors (884306099).

10221403021 is an equidigital number, since it uses as much as digits as its factorization.

10221403021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3153 (or 3094 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 10221403021 its reverse (12030412201), we get a palindrome (22251815222).

The spelling of 10221403021 in words is "ten billion, two hundred twenty-one million, four hundred three thousand, twenty-one".