210002200210121 has 4 divisors (see below), whose sum is σ = 229093309320144. Its totient is φ = 190911091100100.

The previous prime is 210002200210043. The next prime is 210002200210181. The reversal of 210002200210121 is 121012002200012.

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 210002200210121 - 2³⁴ = 209985020340937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210002200210096 and 210002200210105.

It is not an unprimeable number, because it can be changed into a prime (210002200210181) 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, 9545554554995 + ... + 9545554555016.

It is an arithmetic number, because the mean of its divisors is an integer number (57273327330036).

Almost surely, 2^{210002200210121} is an apocalyptic number.

It is an amenable number.

210002200210121 is a deficient number, since it is larger than the sum of its proper divisors (19091109110023).

210002200210121 is a wasteful number, since it uses less digits than its factorization.

210002200210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19091109110022.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 210002200210121 its reverse (121012002200012), we get a palindrome (331014202410133).

The spelling of 210002200210121 in words is "two hundred ten trillion, two billion, two hundred million, two hundred ten thousand, one hundred twenty-one".