210120001120121 has 8 divisors (see below), whose sum is σ = 210608488831104. Its totient is φ = 209631517902160.

The previous prime is 210120001120111. The next prime is 210120001120123. The reversal of 210120001120121 is 121021100021012.

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 210120001120121 - 2¹⁰ = 210120001119097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210120001120096 and 210120001120105.

It is not an unprimeable number, because it can be changed into a prime (210120001120123) 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, 103920026 + ... + 105922668.

It is an arithmetic number, because the mean of its divisors is an integer number (26326061103888).

Almost surely, 2^{210120001120121} is an apocalyptic number.

It is an amenable number.

210120001120121 is a deficient number, since it is larger than the sum of its proper divisors (488487710983).

210120001120121 is a wasteful number, since it uses less digits than its factorization.

210120001120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246511.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 210120001120121 its reverse (121021100021012), we get a palindrome (331141101141133).

The spelling of 210120001120121 in words is "two hundred ten trillion, one hundred twenty billion, one million, one hundred twenty thousand, one hundred twenty-one".