211102202121 has 8 divisors (see below), whose sum is σ = 281503478784. Its totient is φ = 140717863440.

The previous prime is 211102202117. The next prime is 211102202137. The reversal of 211102202121 is 121202201112.

211102202121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 211102202121 - 2² = 211102202117 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 211102202121.

It is not an unprimeable number, because it can be changed into a prime (211102202141) 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 7 ways as a sum of consecutive naturals, for example, 4205385 + ... + 4255286.

It is an arithmetic number, because the mean of its divisors is an integer number (35187934848).

Almost surely, 2^211102202121 is an apocalyptic number.

It is an amenable number.

211102202121 is a deficient number, since it is larger than the sum of its proper divisors (70401276663).

211102202121 is an equidigital number, since it uses as much as digits as its factorization.

211102202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8468991.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 211102202121 its reverse (121202201112), we get a palindrome (332304403233).

The spelling of 211102202121 in words is "two hundred eleven billion, one hundred two million, two hundred two thousand, one hundred twenty-one".