210000120002121 has 8 divisors (see below), whose sum is σ = 289655337934080. Its totient is φ = 135172491035792.

The previous prime is 210000120002077. The next prime is 210000120002213. The reversal of 210000120002121 is 121200021000012.

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 210000120002121 - 2¹⁰ = 210000120001097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210000120002097 and 210000120002106.

It is not an unprimeable number, because it can be changed into a prime (210000120502121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1206897241305 + ... + 1206897241478.

It is an arithmetic number, because the mean of its divisors is an integer number (36206917241760).

Almost surely, 2^{210000120002121} is an apocalyptic number.

It is an amenable number.

210000120002121 is a deficient number, since it is larger than the sum of its proper divisors (79655217931959).

210000120002121 is a wasteful number, since it uses less digits than its factorization.

210000120002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2413794482815.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 210000120002121 its reverse (121200021000012), we get a palindrome (331200141002133).

The spelling of 210000120002121 in words is "two hundred ten trillion, one hundred twenty million, two thousand, one hundred twenty-one".