102111200211 has 4 divisors (see below), whose sum is σ = 136148266952. Its totient is φ = 68074133472.

The previous prime is 102111200171. The next prime is 102111200291. The reversal of 102111200211 is 112002111201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112002111201 = 3 ⋅37334037067.

It is not a de Polignac number, because 102111200211 - 2¹⁰ = 102111199187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102111200291) 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, 17018533366 + ... + 17018533371.

It is an arithmetic number, because the mean of its divisors is an integer number (34037066738).

Almost surely, 2^102111200211 is an apocalyptic number.

102111200211 is a deficient number, since it is larger than the sum of its proper divisors (34037066741).

102111200211 is an equidigital number, since it uses as much as digits as its factorization.

102111200211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34037066740.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 102111200211 its reverse (112002111201), we get a palindrome (214113311412).

The spelling of 102111200211 in words is "one hundred two billion, one hundred eleven million, two hundred thousand, two hundred eleven".