210010122031121 has 4 divisors (see below), whose sum is σ = 210010155635712. Its totient is φ = 210010088426532.

The previous prime is 210010122031103. The next prime is 210010122031123. The reversal of 210010122031121 is 121130221010012.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210010122031121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 210010122031121.

It is not an unprimeable number, because it can be changed into a prime (210010122031123) 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 3 ways as a sum of consecutive naturals, for example, 4353881 + ... + 20951766.

It is an arithmetic number, because the mean of its divisors is an integer number (52502538908928).

Almost surely, 2^{210010122031121} is an apocalyptic number.

It is an amenable number.

210010122031121 is a deficient number, since it is larger than the sum of its proper divisors (33604591).

210010122031121 is an equidigital number, since it uses as much as digits as its factorization.

210010122031121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33604590.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 210010122031121 its reverse (121130221010012), we get a palindrome (331140343041133).

The spelling of 210010122031121 in words is "two hundred ten trillion, ten billion, one hundred twenty-two million, thirty-one thousand, one hundred twenty-one".