200211122212021 has 4 divisors (see below), whose sum is σ = 201739451389344. Its totient is φ = 198682793034700.

The previous prime is 200211122211907. The next prime is 200211122212039. The reversal of 200211122212021 is 120212221112002.

200211122212021 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 200211122212021 - 2²⁵ = 200211088657589 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 200211122212021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200211122212081) 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, 764164588465 + ... + 764164588726.

It is an arithmetic number, because the mean of its divisors is an integer number (50434862847336).

Almost surely, 2^{200211122212021} is an apocalyptic number.

It is an amenable number.

200211122212021 is a deficient number, since it is larger than the sum of its proper divisors (1528329177323).

200211122212021 is a wasteful number, since it uses less digits than its factorization.

200211122212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528329177322.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 200211122212021 its reverse (120212221112002), we get a palindrome (320423343324023).

The spelling of 200211122212021 in words is "two hundred trillion, two hundred eleven billion, one hundred twenty-two million, two hundred twelve thousand, twenty-one".