210200221110121 has 24 divisors (see below), whose sum is σ = 233338014293832. Its totient is φ = 189195955872000.

The previous prime is 210200221110119. The next prime is 210200221110163. The reversal of 210200221110121 is 121011122002012.

It can be written as a sum of positive squares in 4 ways, for example, as 21076913721600 + 189123307388521 = 4590960^2 + 13752211^2 .

It is not a de Polignac number, because 210200221110121 - 2¹ = 210200221110119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210200221110095 and 210200221110104.

It is not an unprimeable number, because it can be changed into a prime (210200221110181) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1036936051 + ... + 1037138743.

It is an arithmetic number, because the mean of its divisors is an integer number (9722417262243).

Almost surely, 2^{210200221110121} is an apocalyptic number.

It is an amenable number.

210200221110121 is a deficient number, since it is larger than the sum of its proper divisors (23137793183711).

210200221110121 is a wasteful number, since it uses less digits than its factorization.

210200221110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287673 (or 287662 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 210200221110121 its reverse (121011122002012), we get a palindrome (331211343112133).

The spelling of 210200221110121 in words is "two hundred ten trillion, two hundred billion, two hundred twenty-one million, one hundred ten thousand, one hundred twenty-one".