213110010200121 has 4 divisors (see below), whose sum is σ = 284146680266832. Its totient is φ = 142073340133412.

The previous prime is 213110010200057. The next prime is 213110010200161. The reversal of 213110010200121 is 121002010011312.

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 not a de Polignac number, because 213110010200121 - 2⁶ = 213110010200057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213110010200121.

It is not an unprimeable number, because it can be changed into a prime (213110010200161) 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, 35518335033351 + ... + 35518335033356.

It is an arithmetic number, because the mean of its divisors is an integer number (71036670066708).

Almost surely, 2^{213110010200121} is an apocalyptic number.

It is an amenable number.

213110010200121 is a deficient number, since it is larger than the sum of its proper divisors (71036670066711).

213110010200121 is an equidigital number, since it uses as much as digits as its factorization.

213110010200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71036670066710.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 213110010200121 its reverse (121002010011312), we get a palindrome (334112020211433).

The spelling of 213110010200121 in words is "two hundred thirteen trillion, one hundred ten billion, ten million, two hundred thousand, one hundred twenty-one".