210200100102121 has 16 divisors (see below), whose sum is σ = 229777997902848. Its totient is φ = 191425538304000.

The previous prime is 210200100102119. The next prime is 210200100102137. The reversal of 210200100102121 is 121201001002012.

It is a cyclic number.

It is not a de Polignac number, because 210200100102121 - 2¹ = 210200100102119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210200100102221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25633480 + ... + 32824921.

It is an arithmetic number, because the mean of its divisors is an integer number (14361124868928).

Almost surely, 2^{210200100102121} is an apocalyptic number.

It is an amenable number.

210200100102121 is a deficient number, since it is larger than the sum of its proper divisors (19577897800727).

210200100102121 is a wasteful number, since it uses less digits than its factorization.

210200100102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58465272.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 210200100102121 its reverse (121201001002012), we get a palindrome (331401101104133).

The spelling of 210200100102121 in words is "two hundred ten trillion, two hundred billion, one hundred million, one hundred two thousand, one hundred twenty-one".