102101220211111 has 16 divisors (see below), whose sum is σ = 113733098899488. Its totient is φ = 90879561792000.

The previous prime is 102101220211103. The next prime is 102101220211121. The reversal of 102101220211111 is 111112022101201.

It is not a de Polignac number, because 102101220211111 - 2³ = 102101220211103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102101220211121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 463940040 + ... + 464160061.

It is an arithmetic number, because the mean of its divisors is an integer number (7108318681218).

Almost surely, 2^{102101220211111} is an apocalyptic number.

102101220211111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102101220211111 is a deficient number, since it is larger than the sum of its proper divisors (11631878688377).

102101220211111 is a wasteful number, since it uses less digits than its factorization.

102101220211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928100322.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 102101220211111 its reverse (111112022101201), we get a palindrome (213213242312312).

The spelling of 102101220211111 in words is "one hundred two trillion, one hundred one billion, two hundred twenty million, two hundred eleven thousand, one hundred eleven".