102021110110111 has 4 divisors (see below), whose sum is σ = 108022351881312. Its totient is φ = 96019868338912.

The previous prime is 102021110110093. The next prime is 102021110110123. The reversal of 102021110110111 is 111011011120201.

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 102021110110111 - 2³⁵ = 101986750371743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102021110110091 and 102021110110100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102021110110411) 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, 3000620885575 + ... + 3000620885608.

It is an arithmetic number, because the mean of its divisors is an integer number (27005587970328).

Almost surely, 2^{102021110110111} is an apocalyptic number.

102021110110111 is a deficient number, since it is larger than the sum of its proper divisors (6001241771201).

102021110110111 is an equidigital number, since it uses as much as digits as its factorization.

102021110110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6001241771200.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 102021110110111 its reverse (111011011120201), we get a palindrome (213032121230312).

The spelling of 102021110110111 in words is "one hundred two trillion, twenty-one billion, one hundred ten million, one hundred ten thousand, one hundred eleven".