10021022421 has 32 divisors (see below), whose sum is σ = 14586421248. Its totient is φ = 6101631360.

The previous prime is 10021022399. The next prime is 10021022441. The reversal of 10021022421 is 12422012001.

10021022421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10021022421 - 2⁶ = 10021022357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10021022421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021022441) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 95280 + ... + 170646.

It is an arithmetic number, because the mean of its divisors is an integer number (455825664).

Almost surely, 2^10021022421 is an apocalyptic number.

It is an amenable number.

10021022421 is a deficient number, since it is larger than the sum of its proper divisors (4565398827).

10021022421 is a wasteful number, since it uses less digits than its factorization.

10021022421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75481.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 10021022421 its reverse (12422012001), we get a palindrome (22443034422).

The spelling of 10021022421 in words is "ten billion, twenty-one million, twenty-two thousand, four hundred twenty-one".