102211200121211 has 4 divisors (see below), whose sum is σ = 105508335609024. Its totient is φ = 98914064633400.

The previous prime is 102211200121207. The next prime is 102211200121213. The reversal of 102211200121211 is 112121002112201.

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 102211200121211 - 2² = 102211200121207 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 102211200121211.

It is not an unprimeable number, because it can be changed into a prime (102211200121213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1648567743860 + ... + 1648567743921.

It is an arithmetic number, because the mean of its divisors is an integer number (26377083902256).

Almost surely, 2^{102211200121211} is an apocalyptic number.

102211200121211 is a deficient number, since it is larger than the sum of its proper divisors (3297135487813).

102211200121211 is an equidigital number, since it uses as much as digits as its factorization.

102211200121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3297135487812.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 102211200121211 its reverse (112121002112201), we get a palindrome (214332202233412).

The spelling of 102211200121211 in words is "one hundred two trillion, two hundred eleven billion, two hundred million, one hundred twenty-one thousand, two hundred eleven".