210002000122121 has 8 divisors (see below), whose sum is σ = 222797116733184. Its totient is φ = 197256001042240.

The previous prime is 210002000122069. The next prime is 210002000122129. The reversal of 210002000122121 is 121221000200012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210002000122121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210002000122096 and 210002000122105.

It is not an unprimeable number, because it can be changed into a prime (210002000122129) 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, 12279373985 + ... + 12279391086.

It is an arithmetic number, because the mean of its divisors is an integer number (27849639591648).

Almost surely, 2^{210002000122121} is an apocalyptic number.

It is an amenable number.

210002000122121 is a deficient number, since it is larger than the sum of its proper divisors (12795116611063).

210002000122121 is a wasteful number, since it uses less digits than its factorization.

210002000122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24558765591.

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

Adding to 210002000122121 its reverse (121221000200012), we get a palindrome (331223000322133).

The spelling of 210002000122121 in words is "two hundred ten trillion, two billion, one hundred twenty-two thousand, one hundred twenty-one".