210112101202121 has 4 divisors (see below), whose sum is σ = 214582571440512. Its totient is φ = 205641630963732.

The previous prime is 210112101202063. The next prime is 210112101202153. The reversal of 210112101202121 is 121202101211012.

210112101202121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-210112101202121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 210112101202121.

It is not an unprimeable number, because it can be changed into a prime (210112301202121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2235235119125 + ... + 2235235119218.

It is an arithmetic number, because the mean of its divisors is an integer number (53645642860128).

Almost surely, 2^{210112101202121} is an apocalyptic number.

It is an amenable number.

210112101202121 is a deficient number, since it is larger than the sum of its proper divisors (4470470238391).

210112101202121 is an equidigital number, since it uses as much as digits as its factorization.

210112101202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4470470238390.

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

Adding to 210112101202121 its reverse (121202101211012), we get a palindrome (331314202413133).

The spelling of 210112101202121 in words is "two hundred ten trillion, one hundred twelve billion, one hundred one million, two hundred two thousand, one hundred twenty-one".