102011100212011 has 4 divisors (see below), whose sum is σ = 102011128457112. Its totient is φ = 102011071966912.

The previous prime is 102011100211981. The next prime is 102011100212039. The reversal of 102011100212011 is 110212001110201.

It is a happy number.

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 102011100212011 - 2¹⁹ = 102011099687723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102011100211982 and 102011100212000.

It is not an unprimeable number, because it can be changed into a prime (102011100212311) 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, 7745125 + ... + 16248358.

It is an arithmetic number, because the mean of its divisors is an integer number (25502782114278).

Almost surely, 2^{102011100212011} is an apocalyptic number.

102011100212011 is a deficient number, since it is larger than the sum of its proper divisors (28245101).

102011100212011 is an equidigital number, since it uses as much as digits as its factorization.

102011100212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28245100.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 102011100212011 its reverse (110212001110201), we get a palindrome (212223101322212).

The spelling of 102011100212011 in words is "one hundred two trillion, eleven billion, one hundred million, two hundred twelve thousand, eleven".