210202414440421 has 8 divisors (see below), whose sum is σ = 227177424644184. Its totient is φ = 193342489052160.

The previous prime is 210202414440413. The next prime is 210202414440467. The reversal of 210202414440421 is 124044414202012.

It can be written as a sum of positive squares in 4 ways, for example, as 60418129868100 + 149784284572321 = 7772910^2 + 12238639^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 210202414440421 - 2³ = 210202414440413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210202414440121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28771200076 + ... + 28771207381.

It is an arithmetic number, because the mean of its divisors is an integer number (28397178080523).

Almost surely, 2^{210202414440421} is an apocalyptic number.

It is an amenable number.

210202414440421 is a deficient number, since it is larger than the sum of its proper divisors (16975010203763).

210202414440421 is a wasteful number, since it uses less digits than its factorization.

210202414440421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57542407751.

The product of its (nonzero) digits is 16384, while the sum is 31.

Adding to 210202414440421 its reverse (124044414202012), we get a palindrome (334246828642433).

The spelling of 210202414440421 in words is "two hundred ten trillion, two hundred two billion, four hundred fourteen million, four hundred forty thousand, four hundred twenty-one".