210010121122021 has 8 divisors (see below), whose sum is σ = 231370286457888. Its totient is φ = 189028011810000.

The previous prime is 210010121122019. The next prime is 210010121122093. The reversal of 210010121122021 is 120221121010012.

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

It is not a de Polignac number, because 210010121122021 - 2¹ = 210010121122019 is a prime.

It is a super-2 number, since 2×210010121122021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210010121121986 and 210010121122004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210010121122621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94514004795 + ... + 94514007016.

It is an arithmetic number, because the mean of its divisors is an integer number (28921285807236).

Almost surely, 2^{210010121122021} is an apocalyptic number.

It is an amenable number.

210010121122021 is a deficient number, since it is larger than the sum of its proper divisors (21360165335867).

210010121122021 is a wasteful number, since it uses less digits than its factorization.

210010121122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189028011923.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 210010121122021 its reverse (120221121010012), we get a palindrome (330231242132033).

The spelling of 210010121122021 in words is "two hundred ten trillion, ten billion, one hundred twenty-one million, one hundred twenty-two thousand, twenty-one".