210200112122121 has 48 divisors (see below), whose sum is σ = 342857337750720. Its totient is φ = 122925228048000.

The previous prime is 210200112122083. The next prime is 210200112122129. The reversal of 210200112122121 is 121221211002012.

210200112122121 is a `hidden beast` number, since 210 + 20 + 0 + 11 + 212 + 212 + 1 = 666.

It is not a de Polignac number, because 210200112122121 - 2⁹ = 210200112121609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210200112122094 and 210200112122103.

It is not an unprimeable number, because it can be changed into a prime (210200112122129) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17929375 + ... + 27237156.

It is an arithmetic number, because the mean of its divisors is an integer number (7142861203140).

Almost surely, 2^{210200112122121} is an apocalyptic number.

It is an amenable number.

210200112122121 is a deficient number, since it is larger than the sum of its proper divisors (132657225628599).

210200112122121 is a wasteful number, since it uses less digits than its factorization.

210200112122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45168198 (or 45168195 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 210200112122121 its reverse (121221211002012), we get a palindrome (331421323124133).

The spelling of 210200112122121 in words is "two hundred ten trillion, two hundred billion, one hundred twelve million, one hundred twenty-two thousand, one hundred twenty-one".