102100111211 has 12 divisors (see below), whose sum is σ = 118787393520. Its totient is φ = 87501209040.

The previous prime is 102100111151. The next prime is 102100111237. The reversal of 102100111211 is 112111001201.

It is not a de Polignac number, because 102100111211 - 2²⁶ = 102033002347 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102100111192 and 102100111201.

It is not an unprimeable number, because it can be changed into a prime (102100111241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 179345 + ... + 486173.

It is an arithmetic number, because the mean of its divisors is an integer number (9898949460).

Almost surely, 2^102100111211 is an apocalyptic number.

102100111211 is a deficient number, since it is larger than the sum of its proper divisors (16687282309).

102100111211 is an equidigital number, since it uses as much as digits as its factorization.

102100111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313634 (or 313627 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 102100111211 its reverse (112111001201), we get a palindrome (214211112412).

The spelling of 102100111211 in words is "one hundred two billion, one hundred million, one hundred eleven thousand, two hundred eleven".