200211211211221 has 32 divisors (see below), whose sum is σ = 230127304780800. Its totient is φ = 170626829218560.

The previous prime is 200211211211191. The next prime is 200211211211239. The reversal of 200211211211221 is 122112112112002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 200211211211221 - 2⁹ = 200211211210709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200211211211321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1652269725 + ... + 1652390893.

It is an arithmetic number, because the mean of its divisors is an integer number (7191478274400).

Almost surely, 2^{200211211211221} is an apocalyptic number.

It is an amenable number.

200211211211221 is a deficient number, since it is larger than the sum of its proper divisors (29916093569579).

200211211211221 is a wasteful number, since it uses less digits than its factorization.

200211211211221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123289.

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

Adding to 200211211211221 its reverse (122112112112002), we get a palindrome (322323323323223).

The spelling of 200211211211221 in words is "two hundred trillion, two hundred eleven billion, two hundred eleven million, two hundred eleven thousand, two hundred twenty-one".