200201210212021 has 4 divisors (see below), whose sum is σ = 202037918562700. Its totient is φ = 198364501861344.

The previous prime is 200201210211971. The next prime is 200201210212049. The reversal of 200201210212021 is 120212012102002.

It is a happy number.

200201210212021 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 69849644912100 + 130351565299921 = 8357610^2 + 11417161^2 .

It is a cyclic number.

It is not a de Polignac number, because 200201210212021 - 2¹⁵ = 200201210179253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200201210211986 and 200201210212004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200201210212921) 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, 918354175176 + ... + 918354175393.

It is an arithmetic number, because the mean of its divisors is an integer number (50509479640675).

Almost surely, 2^{200201210212021} is an apocalyptic number.

It is an amenable number.

200201210212021 is a deficient number, since it is larger than the sum of its proper divisors (1836708350679).

200201210212021 is a wasteful number, since it uses less digits than its factorization.

200201210212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836708350678.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 200201210212021 its reverse (120212012102002), we get a palindrome (320413222314023).

The spelling of 200201210212021 in words is "two hundred trillion, two hundred one billion, two hundred ten million, two hundred twelve thousand, twenty-one".