102201111202111 has 4 divisors (see below), whose sum is σ = 102299476084000. Its totient is φ = 102102746320224.

The previous prime is 102201111202097. The next prime is 102201111202129. The reversal of 102201111202111 is 111202111102201.

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 102201111202111 - 2⁷ = 102201111201983 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 (102201111202171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49182439386 + ... + 49182441463.

It is an arithmetic number, because the mean of its divisors is an integer number (25574869021000).

Almost surely, 2^{102201111202111} is an apocalyptic number.

102201111202111 is a deficient number, since it is larger than the sum of its proper divisors (98364881889).

102201111202111 is an equidigital number, since it uses as much as digits as its factorization.

102201111202111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98364881888.

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

Adding to 102201111202111 its reverse (111202111102201), we get a palindrome (213403222304312).

It can be divided in two parts, 102201 and 111202111, that multiplied together give a palindrome (11364966946311).

The spelling of 102201111202111 in words is "one hundred two trillion, two hundred one billion, one hundred eleven million, two hundred two thousand, one hundred eleven".