200211211666 has 32 divisors (see below), whose sum is σ = 319221145152. Its totient is φ = 93850759680.

The previous prime is 200211211661. The next prime is 200211211703. The reversal of 200211211666 is 666112112002.

It is not an unprimeable number, because it can be changed into a prime (200211211661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9309646 + ... + 9331126.

It is an arithmetic number, because the mean of its divisors is an integer number (9975660786).

Almost surely, 2^200211211666 is an apocalyptic number.

200211211666 is a deficient number, since it is larger than the sum of its proper divisors (119009933486).

200211211666 is a wasteful number, since it uses less digits than its factorization.

200211211666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22554.

The product of its (nonzero) digits is 1728, while the sum is 28.

Adding to 200211211666 its reverse (666112112002), we get a palindrome (866323323668).

The spelling of 200211211666 in words is "two hundred billion, two hundred eleven million, two hundred eleven thousand, six hundred sixty-six".