210200210121101 has 4 divisors (see below), whose sum is σ = 212128652415900. Its totient is φ = 208271767826304.

The previous prime is 210200210121053. The next prime is 210200210121151. The reversal of 210200210121101 is 101121012002012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 92773208653225 + 117427001467876 = 9631885^2 + 10836374^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210200210121101 is a prime.

It is a super-2 number, since 2×210200210121101² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210200210121151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 964221147236 + ... + 964221147453.

It is an arithmetic number, because the mean of its divisors is an integer number (53032163103975).

Almost surely, 2^{210200210121101} is an apocalyptic number.

It is an amenable number.

210200210121101 is a deficient number, since it is larger than the sum of its proper divisors (1928442294799).

210200210121101 is a wasteful number, since it uses less digits than its factorization.

210200210121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928442294798.

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

Adding to 210200210121101 its reverse (101121012002012), we get a palindrome (311321222123113).

The spelling of 210200210121101 in words is "two hundred ten trillion, two hundred billion, two hundred ten million, one hundred twenty-one thousand, one hundred one".