102211201211 has 4 divisors (see below), whose sum is σ = 116812801392. Its totient is φ = 87609601032.

The previous prime is 102211201201. The next prime is 102211201241. The reversal of 102211201211 is 112102112201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102211201211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102211201201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7300800080 + ... + 7300800093.

It is an arithmetic number, because the mean of its divisors is an integer number (29203200348).

Almost surely, 2^102211201211 is an apocalyptic number.

102211201211 is a deficient number, since it is larger than the sum of its proper divisors (14601600181).

102211201211 is an equidigital number, since it uses as much as digits as its factorization.

102211201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14601600180.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102211201211 its reverse (112102112201), we get a palindrome (214313313412).

The spelling of 102211201211 in words is "one hundred two billion, two hundred eleven million, two hundred one thousand, two hundred eleven".