102011111211 has 8 divisors (see below), whose sum is σ = 136126033920. Its totient is φ = 67951797992.

The previous prime is 102011111171. The next prime is 102011111219. The reversal of 102011111211 is 112111110201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102011111211 - 2¹¹ = 102011109163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102011111219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13898091 + ... + 13905428.

It is an arithmetic number, because the mean of its divisors is an integer number (17015754240).

Almost surely, 2^102011111211 is an apocalyptic number.

102011111211 is a deficient number, since it is larger than the sum of its proper divisors (34114922709).

102011111211 is a wasteful number, since it uses less digits than its factorization.

102011111211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27804745.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 102011111211 its reverse (112111110201), we get a palindrome (214122221412).

The spelling of 102011111211 in words is "one hundred two billion, eleven million, one hundred eleven thousand, two hundred eleven".