102100111210211 has 4 divisors (see below), whose sum is σ = 102100462810632. Its totient is φ = 102099759609792.

The previous prime is 102100111210177. The next prime is 102100111210241. The reversal of 102100111210211 is 112012111001201.

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 102100111210211 - 2¹⁸ = 102100110948067 is a prime.

It is a super-2 number, since 2×102100111210211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102100111210241) 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, 175364270 + ... + 175945523.

It is an arithmetic number, because the mean of its divisors is an integer number (25525115702658).

Almost surely, 2^{102100111210211} is an apocalyptic number.

102100111210211 is a deficient number, since it is larger than the sum of its proper divisors (351600421).

102100111210211 is an equidigital number, since it uses as much as digits as its factorization.

102100111210211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351600420.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 102100111210211 its reverse (112012111001201), we get a palindrome (214112222211412).

The spelling of 102100111210211 in words is "one hundred two trillion, one hundred billion, one hundred eleven million, two hundred ten thousand, two hundred eleven".