102100221211 has 4 divisors (see below), whose sum is σ = 102106748800. Its totient is φ = 102093693624.

The previous prime is 102100221203. The next prime is 102100221227. The reversal of 102100221211 is 112122001201.

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 102100221211 - 2³ = 102100221203 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102100221191 and 102100221200.

It is not an unprimeable number, because it can be changed into a prime (102100221281) 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, 3240276 + ... + 3271633.

It is an arithmetic number, because the mean of its divisors is an integer number (25526687200).

Almost surely, 2^102100221211 is an apocalyptic number.

102100221211 is a deficient number, since it is larger than the sum of its proper divisors (6527589).

102100221211 is an equidigital number, since it uses as much as digits as its factorization.

102100221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6527588.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102100221211 its reverse (112122001201), we get a palindrome (214222222412).

The spelling of 102100221211 in words is "one hundred two billion, one hundred million, two hundred twenty-one thousand, two hundred eleven".