200122121211211 has 4 divisors (see below), whose sum is σ = 201465222696000. Its totient is φ = 198779019726424.

The previous prime is 200122121211209. The next prime is 200122121211251. The reversal of 200122121211211 is 112112121221002.

It is a happy number.

200122121211211 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 is a cyclic number.

It is not a de Polignac number, because 200122121211211 - 2¹ = 200122121211209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200122121211251) 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, 671550742171 + ... + 671550742468.

It is an arithmetic number, because the mean of its divisors is an integer number (50366305674000).

Almost surely, 2^{200122121211211} is an apocalyptic number.

200122121211211 is a deficient number, since it is larger than the sum of its proper divisors (1343101484789).

200122121211211 is a wasteful number, since it uses less digits than its factorization.

200122121211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343101484788.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 200122121211211 its reverse (112112121221002), we get a palindrome (312234242432213).

The spelling of 200122121211211 in words is "two hundred trillion, one hundred twenty-two billion, one hundred twenty-one million, two hundred eleven thousand, two hundred eleven".