210241143021 has 32 divisors (see below), whose sum is σ = 345936236800. Its totient is φ = 110599064064.

The previous prime is 210241143011. The next prime is 210241143031. The reversal of 210241143021 is 120341142012.

210241143021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (210241143011) and next prime (210241143031).

It is not a de Polignac number, because 210241143021 - 2³⁵ = 175881404653 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210241143011) by changing a digit.

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, 930496 + ... + 1134153.

It is an arithmetic number, because the mean of its divisors is an integer number (10810507400).

Almost surely, 2^210241143021 is an apocalyptic number.

210241143021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

210241143021 is a deficient number, since it is larger than the sum of its proper divisors (135695093779).

210241143021 is a wasteful number, since it uses less digits than its factorization.

210241143021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2065045.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 210241143021 its reverse (120341142012), we get a palindrome (330582285033).

The spelling of 210241143021 in words is "two hundred ten billion, two hundred forty-one million, one hundred forty-three thousand, twenty-one".