102110221211 has 4 divisors (see below), whose sum is σ = 107484443400. Its totient is φ = 96735999024.

The previous prime is 102110221139. The next prime is 102110221229. The reversal of 102110221211 is 112122011201.

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 102110221211 - 2¹⁰ = 102110220187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102110221261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2687111066 + ... + 2687111103.

It is an arithmetic number, because the mean of its divisors is an integer number (26871110850).

Almost surely, 2^102110221211 is an apocalyptic number.

102110221211 is a deficient number, since it is larger than the sum of its proper divisors (5374222189).

102110221211 is an equidigital number, since it uses as much as digits as its factorization.

102110221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5374222188.

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

Adding to 102110221211 its reverse (112122011201), we get a palindrome (214232232412).

The spelling of 102110221211 in words is "one hundred two billion, one hundred ten million, two hundred twenty-one thousand, two hundred eleven".