200211120110021 has 4 divisors (see below), whose sum is σ = 202193408428044. Its totient is φ = 198228831792000.

The previous prime is 200211120109991. The next prime is 200211120110041. The reversal of 200211120110021 is 120011021112002.

200211120110021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 99429097159396 + 100782022950625 = 9971414^2 + 10039025^2 .

It is a cyclic number.

It is not a de Polignac number, because 200211120110021 - 2¹⁸ = 200211119847877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 200211120109978 and 200211120110005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200211120110041) 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, 991144158860 + ... + 991144159061.

It is an arithmetic number, because the mean of its divisors is an integer number (50548352107011).

Almost surely, 2^{200211120110021} is an apocalyptic number.

It is an amenable number.

200211120110021 is a deficient number, since it is larger than the sum of its proper divisors (1982288318023).

200211120110021 is a wasteful number, since it uses less digits than its factorization.

200211120110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982288318022.

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

Adding to 200211120110021 its reverse (120011021112002), we get a palindrome (320222141222023).

The spelling of 200211120110021 in words is "two hundred trillion, two hundred eleven billion, one hundred twenty million, one hundred ten thousand, twenty-one".