210110022121121 has 8 divisors (see below), whose sum is σ = 215701543283688. Its totient is φ = 204540733648000.

The previous prime is 210110022121117. The next prime is 210110022121193. The reversal of 210110022121121 is 121121220011012.

It can be written as a sum of positive squares in 4 ways, for example, as 4532896483600 + 205577125637521 = 2129060^2 + 14337961^2 .

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 210110022121121 - 2² = 210110022121117 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 210110022121121.

It is not an unprimeable number, because it can be changed into a prime (210110022141121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5558153210 + ... + 5558191011.

It is an arithmetic number, because the mean of its divisors is an integer number (26962692910461).

Almost surely, 2^{210110022121121} is an apocalyptic number.

It is an amenable number.

210110022121121 is a deficient number, since it is larger than the sum of its proper divisors (5591521162567).

210110022121121 is a wasteful number, since it uses less digits than its factorization.

210110022121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11116344723.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 210110022121121 its reverse (121121220011012), we get a palindrome (331231242132133).

The spelling of 210110022121121 in words is "two hundred ten trillion, one hundred ten billion, twenty-two million, one hundred twenty-one thousand, one hundred twenty-one".